Fix AmmWithdraw LPTokenIn field name

[nkramer44]

AmmWithdraw.lpTokensIn had an incorrect JSON field name mapping, ie LPTokensIn vs the correct LPTokenIn, which caused that field to never get serialized to binary.

This PR simply changes the name of that field in the @JsonProperty, and adds BinarySerializationTests for all AMM transactions to ensure our field mappings are correct.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.02%. Comparing base (5013020) to head (e3262db).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #587   +/-   ##
=========================================
  Coverage     92.02%   92.02%           
  Complexity     1843     1843           
=========================================
  Files           382      382           
  Lines          5115     5115           
  Branches        435      435           
=========================================
  Hits           4707     4707           
  Misses          272      272           
  Partials        136      136           

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