Build

Blood: Add detail slider and voxel toggle to options #959

Job	Run time
Windows MSYS2 x86_64 GCC	9m 53s
Windows MSYS2 i686 GCC	9m 46s
Windows MSYS2 x86_64 GCC without SDL	9m 46s
Linux GCC	5m 1s
Linux GCC SDL 1.2	3m 57s
Linux Clang	6m 30s
Linux Clang without GL	5m 52s
Linux Clang without Polymer	6m 22s
macOS Clang	3m 16s
	1h 0m 23s

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