Adding existing source to repo as first true baseline!
Added libgdx-gradle-template files for repo

This leverages the libgdx-gradle-template
(https://github.com/libgdx/libgdx-gradle-template). I made tweaks from
the original master template to point to my proper source file, but you
can follow the README on that repo for instructions on how to create a
Eclipse or IntelliJ set of files VERY easily.