Easy collection

[rozyczko]

This is the collection list as described in #226
Rebased against the new develop branch and due to the change of the base class, made a separate PR.

For discussion look in: #226

[henrikjacobsenfys]

I don't understand the global object well enough to comment on that aspect, but this looks good to me, with two exceptions

[codecov]

Codecov Report

❌ Patch coverage is 87.61468% with 27 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.67%. Comparing base (4be7c47) to head (c436640).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/easyscience/base_classes/easy_collection.py	87.50%	27 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #239      +/-   ##
===========================================
+ Coverage    86.63%   86.67%   +0.04%     
===========================================
  Files           55       56       +1     
  Lines         4690     4907     +217     
===========================================
+ Hits          4063     4253     +190     
- Misses         627      654      +27     

Flag	Coverage Δ
integration	44.67% <22.01%> (-1.07%)	⬇️
unittests	85.38% <87.61%> (+0.10%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/easyscience/base_classes/__init__.py	100.00% <100.00%> (ø)
src/easyscience/base_classes/easy_collection.py	87.50% <87.50%> (ø)