Add custom refresh rate mode to VSync option #393

Job	Run time
pr_build / macOS Universal (Debug)	6m 2s
pr_build / win-x64 (Debug)	8m 22s
pr_build / macOS Universal (Release)	5m 48s
pr_build / linux-x64 (Debug)	5m 18s
pr_build / linux-arm64 (Debug)	2m 52s
pr_build / osx-x64 (Debug)	4m 20s
pr_build / win-x64 (Release)	7m 36s
pr_build / linux-x64 (Release)	4m 18s
pr_build / linux-arm64 (Release)	2m 46s
pr_build / osx-x64 (Release)	4m 7s
	51m 29s

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