[Feature Request] Support Asset Catalog compiler optimization

[thii]

Xcode has a ASSETCATALOG_COMPILER_OPTIMIZATION build setting that:

With no value, the compiler uses the default optimization. You can also specify time to optimize for speed of access or space to optimize for a smaller compiled asset catalogs.

I'd like to request to add an option specify the optimization value of actool. Buck already does it.

[segiddins]

Related: https://github.com/bazelbuild/rules_apple/issues/732

[keith]

Huh I wonder what the default flag is, it looks like that build setting defaults to nothing, and passes --optimization time or --optimization space based on the value.

Strangely I tried this on a large asset catalog of ours (22mbs) and it didn't seem to have any impact on performance or size