add sei2_getBlock endpoints to include bank transfers

[codchen]

Describe your changes and provide context

Add a new version of sei2_getBlock... endpoints that include bank transfers. Specifically any usei bank transfer will show up as a transaction in the transactions field of the _getBlock responses, with from being the sender, to being the recipient, and input being the amount (serialized as bytes and in terms of wei)

Testing performed to validate your change

unit test
localsei

[codecov]

Codecov Report

Attention: Patch coverage is 81.08108% with 7 lines in your changes missing coverage. Please review.

Project coverage is 61.59%. Comparing base (6788468) to head (0996a38).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
evmrpc/block.go	78.78%	3 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2064      +/-   ##
==========================================
+ Coverage   61.34%   61.59%   +0.25%     
==========================================
  Files         264      264              
  Lines       24632    24608      -24     
==========================================
+ Hits        15111    15158      +47     
+ Misses       8387     8321      -66     
+ Partials     1134     1129       -5     

Files with missing lines	Coverage Δ
evmrpc/server.go	87.13% <100.00%> (+0.30%)	⬆️
evmrpc/block.go	76.11% <78.78%> (+0.14%)	⬆️

... and 4 files with indirect coverage changes