Features/json adapter

First draft of JSON serialization and deserialization according to DotAAS, section 5.5 (see #21 (closed)). Basic implementation is finished, but some things are left to do:

• Add thorough testing (current simple test reaches only 40% coverage)
• Further improve testing:
  • Add fail tests for deserialization
  • Add example with None-Values
• Verify license of JSON Schema file (If it is not guaranteed to be provided under a free license, we need to rebase the branch to remove it from the history.)
• Merge master and adapt serialization/deserialization for changes on master branch:
  • Reference vs. AASReference,
  • base classes of View,
  • add license header
  • use model.KEY_ELEMENTS_CLASSES instead of copy in aas.adapter.json.json_deserialization.
• Fix insertion of modelType for non-Referable classes in JSON serialization

changed the description

changed the description

added 1 commit

• 7fdc004d - aas.examples: add example for a nearly complete asset administration shell with all its elements

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marked the checklist item use model.KEY_ELEMENTS_CLASSES instead of copy in aas.adapter.json.json_deserialization. as completed

marked the checklist item add license header as completed

marked the checklist item base classes of View, as completed

marked the checklist item Fix insertion of modelType for non-Referable classes in JSON serialization as completed

marked the checklist item Reference vs. AASReference, as completed

added 47 commits

• 7fdc004d...1a17a253 - 30 commits from branch master
• 83f35e3d - Merge branch 'master' into features/json_adapter
• 521667f0 - adapter.json: Fix changed name of KeyElements.ANNOTATED_RELATIONSHIP_ELEMENT
• 58ce8c98 - adapter.json: Fix usage of Reference and new AASReference
• 2fb14077 - adapter.json: Fix deserialization of View with new base classes
• d3229496 - adapter.json: Fix serialization of Blob with base64 encoding
• 2783f026 - adapter.json: Fix serialization of LangStringSet
• 2da1a6ef - adapter.json: Fix modelType attribute for derived classes
• 8ccf5c36 - adapter.json: Fix serialization of Capability
• 65a34d18 - examples: Fix type error
• 3b6c746e - adapter.json: Use model.KEY_ELEMENTS_CLASSES instead of local copy
• c727b523 - Add license headers to new files
• f913abcf - adapter.json: Fix Reference Key type check in deserialization
• e08918ac - adapter.json: Add deserialization of AnnoatedRelationshipElement
• 0c64ef10 - adapter.json: Allow missing SubmodelElementCollection.ordered attribute
• 122de196 - adapter.json: Fix serialization of Property.valueType
• fc9f4ae6 - model: Add OperationVariable to KeyElements enum
• 62ba0d23 - test: Add json deserialization to the full example test

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added 1 commit

• 71ff4972 - adapter.json: Fix type error

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• 67f8c598 - json.serialization: add write_aas_to_json_file function
• b9c9d187 - adapter.json.json_serialization: add modul docstring
• 29e92c06 - Merge branch 'features/json_adapter' of git.rwth-aachen.de:acplt/pyaas into features/json_adapter

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added 1 commit

• 41ea8369 - fix build error: newline at end of file

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marked the checklist item Add thorough testing (current simple test reaches only 40% coverage) as completed

added 1 commit

• b6657e6c - example.create_ass: add modul docstring

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added 1 commit

• 5a868d50 - fixed build error

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added 2 commits

• 643c5b92 - adapter.json.deserialization: change value handling in construction function for None
• 2b432ac7 - example: add example for creation of a submodel template including test

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• 98a6c69b - model.submodel: add missing default values
• 2b024202 - json: add function to create an example asset administration shell with only...

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• 20f66fd7 - adapter.json: add qualifier for test and fix serialization errors

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• 0c1e90ea - adapter.json: Fix deserialization of Qualifier and Formula

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