feat: updated to support abstract specs

[andorsk]

Supports fixes to: #139

[decentralgabe]

let's discuss the metadata objects before continuing

[andorsk]

@decentralgabe I've added some object to support metadata better. Take a look when you get the chance and lmk if you are ok with it.

[andorsk]

I need to eventually bring this back to life. Sorry, been caught up with other things.

[codecov-commenter]

Codecov Report

Merging #141 (f1cb16b) into main (4ad8843) will increase coverage by 0.01%.
The diff coverage is 32.00%.

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
+ Coverage   55.56%   55.57%   +0.01%     
==========================================
  Files          37       37              
  Lines        4044     4045       +1     
==========================================
+ Hits         2247     2248       +1     
  Misses       1412     1412              
  Partials      385      385              

Impacted Files	Coverage Δ
did/interface.go	50.00% <ø> (ø)
did/model.go	59.37% <ø> (ø)
did/peer.go	55.89% <32.00%> (+0.14%)	⬆️

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[andorsk]

finally fixed all the pending issues on this one. please take a look when you get the chance.

[decentralgabe]

lgtm! thanks for doing this

[andorsk]

@decentralgabe merci!