feat(w3c): add convenience methods to vc and vp

[TimoGlastra]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1477 (d2a7bf2) into main (e0c991f) will increase coverage by 4.98%.
The diff coverage is 17.39%.

@@            Coverage Diff             @@
##             main    #1477      +/-   ##
==========================================
+ Coverage   79.90%   84.88%   +4.98%     
==========================================
  Files         905      943      +38     
  Lines       21912    22578     +666     
  Branches     3811     3911     +100     
==========================================
+ Hits        17509    19166    +1657     
+ Misses       4096     3202     -894     
+ Partials      307      210      -97     

Impacted Files	Coverage Δ
...rc/modules/vc/jwt-vc/W3cJwtVerifiableCredential.ts	45.45% <0.00%> (-2.17%)	⬇️
...ntegrity/models/W3cJsonLdVerifiablePresentation.ts	50.00% <18.18%> (-40.00%)	⬇️
...-integrity/models/W3cJsonLdVerifiableCredential.ts	76.19% <20.00%> (-17.93%)	⬇️
.../modules/vc/jwt-vc/W3cJwtVerifiablePresentation.ts	54.54% <20.00%> (-6.17%)	⬇️

... and 155 files with indirect coverage changes

[karimStekelenburg]

Easy one, LGTM