Gradle Support

[JhnBrunelle]

Howdy,

This restructures a bit of the project to add gradle support. FXML and images are moved to a resources folder.

We're using MavenCentral, Dependencies can be added to the project by editing the settings.gradle and adding it to the dependencies{ }

to run the program:

gradle build
gradle jfxRun

[JhnBrunelle]

@joshuakarbi have a look at these changes, and if they don't mess up your current stuff too much then merge!

[JhnBrunelle]

Whoops, my bad. Fixed