Replaced `FNV1a`/`fasthash` with `CityHash`, reworked `BinaryShaderCa… #378

Job	Run time
Build (Release, GLFW)	10m 27s
Build (Release, SDL2)	14m 12s
Build (Release, GLFW, SharewareDemo)	7m 38s
Build (Release, SDL2, SharewareDemo)	7m 57s
	40m 14s

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