Adds example code to demonstrate/test how to use the new map api code.
MapHarness: adds height mesh generation, new tile specific gl.Translate call, minimum calls to GL, experimental timer to add new sample tiles to the pool. Needs work.
4 color texture shader experiment.
Adds colour LUT texture for use with height map terrain data. branch-free colour coding. Also adds crude terrain profiling code.
Displays a beautiful crisp sharp mixture of colour, normals and height map.
Messing with probe tiling, cleaner use of map.getTerrainProfile(…)
Tweaks to build a single tile of data with a target of Mt Ranier.
Updates MapHarness to use self documenting colour map, more accurate metricated math, saner shader logic. Lessons learned.
Modified to call gfx.plot