Add EIP-44 support

[arobsn]

• Message representation
• Signing protocol
• Verification protocol

closes #106

[changeset-bot]

🦋 Changeset detected

Latest commit: a6914d4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 9 packages

Name	Type
@fleet-sdk/crypto	Minor
@fleet-sdk/core	Minor
@fleet-sdk/wallet	Minor
@fleet-sdk/compiler	Minor
@fleet-sdk/mock-chain	Minor
@fleet-sdk/serializer	Minor
@fleet-sdk/blockchain-providers	Minor
@fleet-sdk/ageusd-plugin	Patch
@fleet-sdk/babel-fees-plugin	Patch

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (07e006c) to head (a6914d4).
Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##            master      #108    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          109       111     +2     
  Lines        15522     15740   +218     
  Branches      1459      1496    +37     
==========================================
+ Hits         15522     15740   +218     

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