Support for JRuby-Files like Rules-Files

[niklas85]

I'm currently using RulesDSL with this AddOn. And I like it so much, its so comftable and easy to have direct access to the items states in VSCode.
But I'd like to build more complex processes and RulesDSL is a limitation for now. So I started to play arround and discovered JRuby. Its very easy to use, native to openhab and more powerfull than RulesDSL.
But I'm missing the features of this Add-On in my daily work with openhab.
So I startet to modify the Addon meta-files to add .rb files to the addons features.
This works for me, but I think a more mighty deveolper will be able to integrate .rb files better.

So the idea is to request a support for .rb files like .rules by this addon.

I added my modified package file and the meta files, to give an idea to what i've done to make it work.
openhab.metaFiles.zip
package.zip