chore: moved IATP model classes up from IdentityHub

[paullatzelsperger]

What this PR changes/adds

This PR moves most of the commonly used IATP model classes up into EDC from the IdentityHub. Most notably:

• model classes that are used to query the CredentialServce (=IdentityHub)
• Transformers for the model classes
• constants

Why it does that

The model classes will be shared by the connector and IdentityHub

Further notes

• This PR does not introduce any functional changes, only moves classes from one repo to another
• once this PR is merged, the classes will be deleted from IdentityHub

Linked Issue(s)

Closes # <-- insert Issue number if one exists

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[codecov-commenter]

Codecov Report

Attention: 97 lines in your changes are missing coverage. Please review.

Comparison is base (5b13175) 72.11% compared to head (06253a4) 71.74%.

Files	Patch %	Lines
...ntitytrust/model/presentationdefinition/Field.java	0.00%	24 Missing ⚠️
.../model/presentationdefinition/InputDescriptor.java	0.00%	23 Missing ⚠️
...presentationdefinition/PresentationDefinition.java	0.00%	21 Missing ⚠️
...ust/model/credentialservice/PresentationQuery.java	0.00%	16 Missing ⚠️
...m/to/JsonObjectToPresentationQueryTransformer.java	63.15%	5 Missing and 2 partials ⚠️
.../identitytrust/core/IdentityAndTrustExtension.java	0.00%	2 Missing ⚠️
.../model/credentialservice/PresentationResponse.java	0.00%	1 Missing ⚠️
...rust/model/presentationdefinition/Constraints.java	0.00%	1 Missing ⚠️
...model/presentationdefinition/FilterExpression.java	0.00%	1 Missing ⚠️
...titytrust/model/presentationdefinition/Format.java	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3612      +/-   ##
==========================================
- Coverage   72.11%   71.74%   -0.37%     
==========================================
  Files         898      909      +11     
  Lines       17973    18084     +111     
  Branches     1021     1021              
==========================================
+ Hits        12961    12975      +14     
- Misses       4571     4666      +95     
- Partials      441      443       +2     

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