Remove references to System.Data.Odbc from wrapper and extensions

[nr-ahemsath]

Per team pairing last week, we should not add a reference to System.Data.Odbc to the Sql wrapper project nor the Extensions project with the helper code.

I initially went down a rabbit hole of using visibility bypasser to get the necessary data out of the OdbcCommand object. However, I eventually realized that we can treat the OdbcCommand object as an IDbCommand interface type and get almost everything we need directly that way. The one exception is the Driver string (needed to get the DatastoreVendor), which is not a part of the IDbCommand interface. However, it can be easily parsed from the ODBC connection string (and cached based on the full connection string).

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 23.52941% with 13 lines in your changes missing coverage. Please review.

Please upload report for BASE (feature/netstandard-odbc-instrumentation@2a36a03). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...Relic.Agent.Extensions/Parsing/SqlWrapperHelper.cs	23.52%	13 Missing ⚠️

Additional details and impacted files

@@                             Coverage Diff                             @@
##             feature/netstandard-odbc-instrumentation    #2928   +/-   ##
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  Coverage                                            ?   81.21%           
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  Files                                               ?      466           
  Lines                                               ?    29642           
  Branches                                            ?     3297           
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  Hits                                                ?    24074           
  Misses                                              ?     4776           
  Partials                                            ?      792           

Flag	Coverage Δ
Agent	82.11% <23.52%> (?)
Profiler	73.13% <ø> (?)

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Files with missing lines	Coverage Δ
...Relic.Agent.Extensions/Parsing/SqlWrapperHelper.cs	33.33% <23.52%> (ø)