Recompile with outside libs

[ScarletLovell]

For my mod, MegaMod, I use Google's Gson library for a few things.
However, with my move back to MCP from Mixins, I am unable to compile my mod with MCP.

Is there any possible fix for this or in the future support could be possibly added for outside libs?

You can shift gson library files into lwjgl.jar or lwjgl_util.jar or even jinput.jar in /jars/bin (that worked for me)