grid generation

this took forever, and was much harder than i expected
 
basically, i needed to create a whole new rendering pipeline and a whole new glsl shader pair, as well as coming up with logic so the triangle-focused renderer can actually render some super thin infinite lines
 
the grid does generate dynamically around the camera view, so it is endless
 
i think it does look pretty good tho

next, ill prolly work on adding some move and rotation and maybe even scale tools