Added support for Oracle via Doobie

[milessabin]

Work in progress ...

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.91549% with 10 lines in your changes missing coverage. Please review.

Project coverage is 75.89%. Comparing base (6bd6ba9) to head (9bd0b28).
Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
modules/sql-core/src/main/scala/SqlMapping.scala	77.77%	8 Missing ⚠️
...ie-oracle/src/main/scala/DoobieOracleMapping.scala	94.73%	1 Missing ⚠️
...es/sql-pg/shared/src/main/scala/SqlPgMapping.scala	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #662      +/-   ##
==========================================
+ Coverage   75.60%   75.89%   +0.29%     
==========================================
  Files          32       34       +2     
  Lines        5030     5091      +61     
  Branches     1094     1091       -3     
==========================================
+ Hits         3803     3864      +61     
  Misses       1227     1227              

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[tpolecat]

Oracle? Wow, my condolences.

[milessabin]

@tpolecat the biggest job turned out to be rejigging the organisation of the various modules, and reworking the way docker is used in the tests/demo (the Oracle image takes way too long to startup and shutdown to run that cycle once for each suite).

I imagine you'll want to avert your gaze from the Oracle specifics, but I'd welcome your feedback on the reorg, the docker usage and also this change in the skunk module (currently a Session resource is use'd once per-fetch, which is probably harmless in the presence of a connection pool, but I think not ideal).

This will stay as WIP until the accompanying SQL Server module lands.

[milessabin]

Superseded by #675.