refactor(crypto): signature deserialization

[spkjp]

Ensures that a V2 transaction that uses ECDSA can still be properly deserialized.

What kind of change does this PR introduce?

• Bugfix
• Feature
• Refactor
• Performance
• Tests
• Build
• Documentation
• Code style update
• Continuous Integration
• Other, please describe:

Does this PR introduce a breaking change?

• Yes
• No

Does this PR release a new version?

• Yes
• No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

• It's submitted to the develop branch, not the master branch
• All tests are passing
• New/updated tests are included

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (develop@7da2373). Click here to learn what that means.
The diff coverage is 96%.

@@            Coverage Diff             @@
##             develop    #2877   +/-   ##
==========================================
  Coverage           ?   67.27%           
==========================================
  Files              ?      379           
  Lines              ?     9051           
  Branches           ?      441           
==========================================
  Hits               ?     6089           
  Misses             ?     2929           
  Partials           ?       33

Impacted Files	Coverage Δ
packages/crypto/src/transactions/verifier.ts	90.9% <ø> (ø)
...ges/crypto/src/transactions/types/multi-payment.ts	100% <100%> (ø)
...s/crypto/src/transactions/types/multi-signature.ts	66% <100%> (ø)
...kages/crypto/src/transactions/types/htlc-refund.ts	100% <100%> (ø)
...ckages/crypto/src/transactions/types/htlc-claim.ts	100% <100%> (ø)
packages/crypto/src/transactions/signer.ts	90.9% <100%> (ø)
...pto/src/transactions/types/delegate-resignation.ts	100% <100%> (ø)
...ackages/crypto/src/transactions/types/htlc-lock.ts	100% <100%> (ø)
packages/crypto/src/transactions/types/ipfs.ts	100% <100%> (ø)
packages/crypto/src/transactions/deserializer.ts	90.8% <88.88%> (ø)

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