Add helper methods to access files inside zip files

[LexManos]

This is a first draft of what I had in mind for addressing #1080
This just adds helper methods for converting a FileCollection of archives, to a FileCollection of files from those archives.

Example usages (untested, but should work):

configurations {
  mods
  implementation.extendsFrom mods
}

dependencies {
  mods renamer.dependency(libs.modA)
  mods renamer.dependency(libs.modB)

  implementation minecraft.dependency(forge) {
    facades.from('src/main/resources/META-INF/facades.cfg')
    facades.from(fg.mapFacades(configurations.mods))
    accessTransformers.from('src/main/resources/META-INF/at.cfg')
    accessTransformers.from(fg.mapAccessTransformers(configurations.mods))
  }
}

Its fairly generic, so you can do something like this:

configurations {
    sharedLibs
}

dependencies {
    sharedLibs 'org.json:json:20260719'
}
fg.mapZip(configurations.sharedLibs, 'META-INF/MANIFEST.MF').forEach { 
  file -> logger.lifecycle('File: ' + file.absolutePath) 
}

Outputs a nice:
File: Z:\test\_test\build\minecraftforge\forgegradle\zip_data\82390308e0b67205bf0d0d507dc48e0d71410bf7\json-20260719\META-INF\MANIFEST.MF

In addition this defacto standardizes the Facade files in deps to:
A space separated list in the FORGE_FACADE manifest attribute OR META-INF/facades.cfg

Javadocs need to be written.
Do you think I should promote the BiFunction<File, JarFile, List<ZipEntry>> to a proper EntryFinder interface and expose a mapZip(FileCollection, EntryFinder)?

Adding support for the access transformer helper requires parsing the mods.toml, as such I have to add a TOML dependency, so I add Jezza Toml which adds ~30kb to the jar. Same library I use for Renamer.

The functions that take Object instead of FileCollection just pass it directly to project.files as a small helper to make cleaner build files.

mapZip(files, name) just grabs the explicit file from any archive that has it
mapAccessTransformers(files) tries to find ATs from the manifest, toml, and default location
mapFacace(files) tries to find the facade config from the manifest, or default location