feat(ifl-776): size method note primitives

[jowparks]

Summary

• Adding size methods for Note/NoteEncrypted primitives
• Add test to make sure these stay up to date

Reason for addition

Our constants were becoming stale rather quickly (e.g. NOTE_ENCRYPTED_SERIALIZED_SIZE_IN_BYTE), so this pattern attempts to do two things.

1. Tightly couple the size via a static method to our objects (rather than an unrelated constant)
2. Add a test that verifies this always stays up to date. It is currently possible to update the serialized size of these objects (rust side) without updating these methods. Now if these values change, the tests will break.

Testing Plan

tests pass

Documentation

Does this change require any updates to the Iron Fish Docs (ex. the RPC API
Reference)? If yes, link a
related documentation pull request for the website.

[ ] Yes

Breaking Change

Is this a breaking change? If yes, add notes below on why this is breaking and
what additional work is required, if any.

[ ] Yes

[NullSoldier]

This change looks good, but can we get a comment on the systemic implications here? Is this a new pattern we should be going for? When ever we start moving the code base in a new direction with a new pattern it'd be nice to comment on that in the description as others will look back here for an explanation on why this was done, and if they should do the same.