Move row data decoding out of state machine

[lovetodream]

This reduces memory allocations.

[codecov]

Codecov Report

Attention: Patch coverage is 97.59450% with 14 lines in your changes missing coverage. Please review.

Project coverage is 81.63%. Comparing base (84068c7) to head (8ae7e8f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #52      +/-   ##
==========================================
+ Coverage   81.42%   81.63%   +0.20%     
==========================================
  Files         128      130       +2     
  Lines       15051    14865     -186     
==========================================
- Hits        12256    12135     -121     
+ Misses       2795     2730      -65     

Files	Coverage Δ
...onnectionStateMachine/ConnectionStateMachine.swift	72.86% <ø> (+2.06%)	⬆️
.../Messages/Coding/OracleBackendMessageDecoder.swift	90.97% <100.00%> (+0.82%)	⬆️
Sources/OracleNIO/Messages/DescribeInfo.swift	95.83% <ø> (-0.03%)	⬇️
...eNIO/Messages/OracleBackendMessage+BitVector.swift	82.35% <100.00%> (ø)
...eNIO/Messages/OracleBackendMessage+Parameter.swift	80.35% <100.00%> (ø)
...rces/OracleNIO/Messages/OracleBackendMessage.swift	70.00% <100.00%> (-0.40%)	⬇️
Sources/OracleNIO/OracleChannelHandler.swift	86.01% <100.00%> (-0.06%)	⬇️
Sources/OracleNIO/Utilities/OracleHexDump.swift	100.00% <100.00%> (ø)
Tests/IntegrationTests/OracleNIOTests.swift	99.81% <100.00%> (+<0.01%)	⬆️
...ctionStateMachine/StatementStateMachineTests.swift	100.00% <100.00%> (ø)
... and 6 more

... and 5 files with indirect coverage changes