Fixed iteration visual value in fbresearch_logger

[vfdev-5]

Description:

• Fixed iteration visual value in fbresearch_logger

Before this PR (10 -> 9 -> 8 -> 7 but should be always 10):

Training: start epoch [1/15]                                                                                                                                                                       
Epoch [1/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [1/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s  
Training: Epoch [1/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [2/15]                                                                                                                                                                       
Epoch [2/15]  [9/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                    
Epoch [2/15]  [19/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s  
Training: Epoch [2/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [3/15]                                                                                                                                                                       
Epoch [3/15]  [8/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                    
Epoch [3/15]  [18/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s  
Training: Epoch [3/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [4/15]                                                                                                                                                                       
Epoch [4/15]  [7/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                    
Epoch [4/15]  [17/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s  
Training: Epoch [4/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [5/15]                                                                                                                                                                       
Epoch [5/15]  [6/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                    
Epoch [5/15]  [16/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s 

with the PR:

Training: start epoch [1/15]                                                                                                                                                                       
Epoch [1/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [1/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Training: Epoch [1/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [2/15]                                                                                                                                                                       
Epoch [2/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [2/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Training: Epoch [2/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [3/15]                                                                                                                                                                       
Epoch [3/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [3/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Training: Epoch [3/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [4/15]                                                                                                                                                                       
Epoch [4/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [4/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Training: Epoch [4/15]  Total time: 0:00:00  (0.0000 s / it)                                                                                                                                       
Training: start epoch [5/15]                                                                                                                                                                       
Epoch [5/15]  [10/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s                                                                                                   
Epoch [5/15]  [20/20]:  ETA: 0:00:00    42.0000    Iter time: 0.0000 s  Data prep time: 0.0000 s  

Check list:

• New tests are added (if a new feature is added)
• New doc strings: description and/or example code are in RST format
• Documentation is updated (if required)