Enhance Tx Message Data

[alexanderbez]

Description

Introduce MsgData and TxData, when the Data returned after tx execution, contains a proto-encoded TxData, that contains a MsgData for each message in the tx. The MsgData includes the already proto-encoded data blob in addition to the message type for further context.

closes: #6375

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• Wrote unit and integration tests
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• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
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[codecov]

Codecov Report

Merging #6384 into master will decrease coverage by 0.00%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master    #6384      +/-   ##
==========================================
- Coverage   55.60%   55.60%   -0.01%     
==========================================
  Files         457      457              
  Lines       27440    27444       +4     
==========================================
+ Hits        15257    15259       +2     
- Misses      11083    11084       +1     
- Partials     1100     1101       +1     

[ethanfrey]

Nice one @alexanderbez
Thank you!

[assafmo]

For reference, this is how to deserialize this: https://github.com/enigmampc/SecretNetwork/blob/0948acabe6239c9617b4660fe25bad870e8ec09c/x/compute/client/cli/query.go?plain=1#L395-L396