Support - Adding mixin.env.remapRefMap=true to gradle kts

[MrFuzzihead]

Requesting support for adding these java properties to the compile/runtime for client/server in an addon.gradle.kts file:

property 'mixin.env.remapRefMap', 'true' property 'mixin.env.refMapRemappingFile', "${projectDir}/build/createSrgToMcp/output.srg"