Hooking up Gator

[Checkmate50]

A main objective of this project is to use the gatorc compiler to actually generate relevant GLSL code. Initially, this can happen in two steps (e.g. fragment.glsl < gatorc fragment.lgl; parcel serve ...), but should eventually be built into the JavaScript itself, such as in the Gator example file. To resolve this issue, make it so that the gatorc compiler is run as part of serving the html.