Roi from model bounds

[amymmorton]

A start to the subvolume 3d registration testing, implements the roi generation from model bounds

TO DO:
iterate on all Models | load from file

[amymmorton]

@sbelsk You can take this and help iterate on it or make another from scratch

TO DO:

• load stl from file- iterate for all Model nodes
• use CropVolume

   /// Perform non-interpolated (voxel-based) cropping.
   /// If limitToInputExtent is set to true (default) then the extent can only be smaller than the input volume.
   static int CropVoxelBased(vtkMRMLDisplayableNode* roi, vtkMRMLVolumeNode* inputVolume,
      vtkMRMLVolumeNode* outputNode, bool limitToInputExtent=true, double fillValue=0.0); 

and the generated roi to generate subvolumes

[jcfr]

Thanks @amymmorton for creating this PR along side issue #151 describing the overall workflow and providing reference to datasets 🙏

[amymmorton]

@sbelsk can you help me fix my failing precommit, Commit messages please? :(

[jcfr]

pre-commit check

The pre-commit failures have been addressed.

commit message check

The commit message check is failing because some commits start with WIP: prefix, this is described here

Addressing this could be done by using git rebase --interactive 06acebe and then editing the "faulty" commit messages. For example WIP: Initial Extension Setup -> ENH: Initial Extension Setup