[VS Incentives]: Add support for CW pools in group gauge syncing once they have gauge support

[AlpinYukseloglu]

Background

Once CW pools have gauges created post #6122, syncGroupGaugeWeights should be updated to be able to split across them as well.

Suggested Design

• Add case for CW pools in syncGroupGaugeWeights based on however they are decided to be identified (e.g. maybe a subset of NoLock)

Acceptance Criteria

• All new and existing tests pass

[p0mvn]

Ref: #6122 (comment)

cw pool incentives are not well-defined at the moment so we might not need this effort

[p0mvn]

I'm going to move this out of the volume-splitting feature since we decided to avoid pursuing CW pool gauges for v20. Instead, keep this in the icebox