feat: PresentationDefinition API improvements:

[Moopli]

• CreateVP methods set VP IDs
• Match supports merged submission map[string]interface{} and VP submission fields of PresentationSubmission type.

[codecov]

Codecov Report

Merging #3547 (719380f) into main (175d658) will decrease coverage by 0.02%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main    #3547      +/-   ##
==========================================
- Coverage   87.75%   87.74%   -0.02%     
==========================================
  Files         351      351              
  Lines       48511    48571      +60     
==========================================
+ Hits        42573    42620      +47     
- Misses       4398     4408      +10     
- Partials     1540     1543       +3     

Impacted Files	Coverage Δ
pkg/internal/ldtestutil/document_loader.go	82.14% <ø> (ø)
pkg/doc/presexch/api.go	87.92% <72.00%> (-1.83%)	⬇️
pkg/doc/presexch/definition.go	85.42% <86.66%> (-0.43%)	⬇️
pkg/doc/verifiable/credential.go	91.04% <100.00%> (+0.04%)	⬆️
.../tinkcrypto/primitive/secp256k1/subtle/encoding.go	61.01% <0.00%> (+5.08%)	⬆️

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