Message Property Jar Support

[jdaugherty]

Issue description

Add support for loading message properties by jar & enable an option in forge to use the jar instead of generating properties files for i18n

[sanjana2505006]

Hello @jdaugherty,
I’d like to work on this feature and wanted to confirm the intended approach.

Is there any guidance on how message properties should be loaded from a JAR, and how the Forge option is expected to behave? I want to make sure the implementation aligns with the project’s direction.