opcm: Add support for V2 contracts in addGameType

[ajsutton]

Description

Replaces #17464 (by stealing all its changes as a starting point). Rebased on latest changes in #17408

Tests

Enabled the addGameType tests when run with v2 feature enabled.

Metadata

Fixes #17260

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.37%. Comparing base (eed9012) to head (761f7e5).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #17782      +/-   ##
===========================================
+ Coverage    74.79%   81.37%   +6.58%     
===========================================
  Files          175      120      -55     
  Lines        11243     6475    -4768     
===========================================
- Hits          8409     5269    -3140     
+ Misses        2690     1206    -1484     
+ Partials       144        0     -144     

Flag	Coverage Δ
cannon-go-tests-64	?
contracts-bedrock-tests	81.37% <100.00%> (+0.09%)	⬆️

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Files with missing lines	Coverage Δ
...es/contracts-bedrock/src/L1/OPContractsManager.sol	96.29% <100.00%> (+0.50%)	⬆️

... and 56 files with indirect coverage changes

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[wiz-inc-a178a98b5d]

Wiz Scan Summary

Scanner	Findings
Vulnerabilities	-
Sensitive Data	-
Total	-

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[ajsutton]

Back to draft until #17874 is merged - there's some extra commits from develop being pulled in here because of the various rebases. Will be easier to sort out when the parent is rebased on develop and merged.