feat: implement Multi-Signature signing and broadcasting

[faustbrian]

No description provided.

[codecov]

Codecov Report

Merging #678 into master will decrease coverage by 0.06%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master     #678      +/-   ##
==========================================
- Coverage   65.05%   64.99%   -0.07%     
==========================================
  Files         100      100              
  Lines        2032     2034       +2     
  Branches      221      221              
==========================================
  Hits         1322     1322              
- Misses        632      634       +2     
  Partials       78       78              

Flag	Coverage Δ
#unit	64.99% <33.33%> (-0.07%)	⬇️

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Impacted Files	Coverage Δ
...sdk-profiles/src/wallets/dto/signed-transaction.ts	33.33% <33.33%> (-9.53%)	⬇️

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