Fixing loaded transformation issue

[rerpha]

Issue

Relates to #498

Description of work

Cleaning up the code a bit.
Adding dependee_of attribute when files are loaded (from json or nexus)

Acceptance Criteria

What you have changed, how the reviewer should test it

UI tests

No UI Changes

Nominate for Group Code Review

• Nominate for code review

[rerpha]

#498 - The dependee_of attribute is not getting populated hence why no transformations are showing up. We will need to add this when opening a nexus file or a filewriter command

[codecov-io]

Codecov Report

Merging #512 into master will increase coverage by 0.07%.
The diff coverage is 78.26%.

@@            Coverage Diff             @@
##           master     #512      +/-   ##
==========================================
+ Coverage   83.14%   83.21%   +0.07%     
==========================================
  Files          51       51              
  Lines        3678     3700      +22     
==========================================
+ Hits         3058     3079      +21     
- Misses        620      621       +1

Impacted Files	Coverage Δ
nexus_constructor/transformation_view.py	31.57% <0%> (-0.68%)	⬇️
nexus_constructor/component_tree_view.py	24.65% <0%> (-0.35%)	⬇️
nexus_constructor/component/component.py	96.25% <100%> (+0.04%)	⬆️
...ctor/geometry/disk_chopper/disk_chopper_checker.py	100% <100%> (ø)	⬆️
nexus_constructor/nexus/nexus_wrapper.py	92.57% <100%> (+2.19%)	⬆️
nexus_constructor/transformations.py	96.39% <80%> (-0.86%)	⬇️
nexus_constructor/component_tree_model.py	88.13% <92.85%> (ø)	⬆️