Feature: volume synchronizing

[maharshi-gor]

Feature: Volume Synchronizing

This PR introduces the changes for a feature where the volume slider will be synchronized.

When to synchronize

• All the provided images have the same shape.
• All the images with volume should have the same volume samples.

Behavior Expectation

Images with the same shape and same volumes
The slices will be synchronized and volumes will also be synchronized.

Images with the same shape but different volumes
The slices will be synchronized but volumes will not be synchronized.

Images with different shapes but same volumes and Images with different shapes and different volumes
Nothing will be synchronized and a warning will be visible.

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 82.34%. Comparing base (fe4bfe6) to head (529a3fd).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3092      +/-   ##
==========================================
- Coverage   82.39%   82.34%   -0.06%     
==========================================
  Files         146      146              
  Lines       20640    20664      +24     
  Branches     3320     3328       +8     
==========================================
+ Hits        17006    17015       +9     
- Misses       2804     2817      +13     
- Partials      830      832       +2     

Files	Coverage Δ
dipy/viz/horizon/app.py	45.55% <100.00%> (ø)
dipy/viz/horizon/util.py	97.67% <100.00%> (+0.45%)	⬆️
dipy/viz/horizon/tab/base.py	71.02% <41.66%> (-1.01%)	⬇️
dipy/viz/horizon/tab/slice.py	49.24% <20.00%> (-1.81%)	⬇️

... and 1 file with indirect coverage changes

[skoudoro]

Hi @maharshi-gor,

Looks good to me. I just need to do a quick local tests and then merging

[skoudoro]

Thanks @maharshi-gor, merging