CAST Version 1.2.1 PR

[titomeister]

This pull request updates the GroMEt structures

GroMEt metadata

• The metadata collection has been changed such that all metadata is stored in an array of lists, where each list holds metadata for a particular GroMEt object. The GroMEt objects then store indices into this list now, as opposed to storing the metadata itself.
• The exporter and importers were updated to support this change
• One temporary fix needed to be introduced: Swagger's to_dict() methods don't seem to fully support array of lists, so an additional step is introduced in the serializer to make sure all objects get converted to dictionaries before serializing.
• A schema and schema_version field were introduced to the top level GroMEt structure.

There were plans to introduce an identifier in CAST to maintain an execution order, but this has been pushed back until later.

[codecov[bot]]

Codecov Report

Merging #318 (727a245) into master (73920d1) will increase coverage by 0.13%. The diff coverage is 23.65%.

:exclamation: Current head 727a245 differs from pull request most recent head 2d5e87e. Consider uploading reports for the commit 2d5e87e to get more accurate results

@@            Coverage Diff             @@
##           master     #318      +/-   ##
==========================================
+ Coverage   32.46%   32.60%   +0.13%     
==========================================
  Files         148      149       +1     
  Lines       25115    25014     -101     
==========================================
+ Hits         8153     8155       +2     
+ Misses      16962    16859     -103     

Impacted Files	Coverage Δ
...tomates/model_assembly/gromet/metadata/__init__.py	0.00% <ø> (ø)
...utomates/model_assembly/gromet/metadata/bibjson.py	0.00% <ø> (ø)
...el_assembly/gromet/metadata/code_file_reference.py	0.00% <ø> (ø)
...el_assembly/gromet/metadata/equation_definition.py	0.00% <ø> (ø)
...el_assembly/gromet/metadata/equation_extraction.py	0.00% <ø> (ø)
...del_assembly/gromet/metadata/equation_parameter.py	0.00% <ø> (ø)
.../model_assembly/gromet/metadata/gromet_creation.py	0.00% <0.00%> (ø)
...es/model_assembly/gromet/metadata/literal_value.py	0.00% <ø> (ø)
...tomates/model_assembly/gromet/metadata/metadata.py	0.00% <ø> (ø)
...mates/model_assembly/gromet/metadata/provenance.py	0.00% <ø> (ø)
... and 64 more

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