Add current time into logging message

[vfdev-5]

Right now the logging message is the following (trainin-info.log):

...
�[32m[ignite]�[0m: train [1/90]: {'epoch': 1, 'train_loss': 2.521751880645752}
�[32m[ignite]�[0m: train [1/100]: {'epoch': 1, 'train_loss': 2.4120213985443115}
...

Let's add current datetime instead of "ignite" as following:

...
�[32m[20230819-12:34:56]�[0m: train [1/90]: {'epoch': 1, 'train_loss': 2.521751880645752}
�[32m[20230819-12:35:12]�[0m: train [1/100]: {'epoch': 1, 'train_loss': 2.4120213985443115}
...

[vfdev-5]

Fixed in #303