feat(tiler-sharp): add terrain-rgb pipeline #3125
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Motivation
Terrain RGB is a common format for sharing tiled elevation services,
for some rough performance numbers,
TerrainRGB encoding for common tile sizes:
Both lossless webp and png can be used, however lossless webp is much slower to compress
Modification
adds support for float32 datasets to be converted on the fly to TerrainRGB
Checklist
If not applicable, provide explanation of why.