51: use address for resolveDid parameter

[jac18281828]

closes #51

renaming publicKey parameter to address

[jac18281828]

tested:

curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method":"did_resolveDid", "params": { "address":"0x6CE..."} }' http://localhost:8080
{"jsonrpc":"2.0","result":{"didDocumentMetadata":{"deactivated":false,"versionId":5281718,"updated":"2024-02-13T19:07:36Z"}...

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (05b7e66) 97.28% compared to head (c7f7452) 97.27%.

Files	Patch %	Lines
lib/src/resolver.rs	91.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #52      +/-   ##
==========================================
- Coverage   97.28%   97.27%   -0.01%     
==========================================
  Files          13       13              
  Lines        2833     2826       -7     
==========================================
- Hits         2756     2749       -7     
  Misses         77       77              

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