Support 1/2, 1/3, 1/4 vsync #1135

Job	Run time
version	3s
build-ps4	6m 3s
build-switch (opengl)	4m 15s
build-macos (IntelChip, IntelChip)	3m 53s
build-switch (deko3d)	4m 7s
build-flatpak (x86_64, gl)	5m 9s
build-psv (gxm, latest-gxm, -DUSE_GXM=ON -DUSE_VITA_SHARK=OFF)	8m 53s
build-macos (IntelChip_Old, IntelChip_10.11)	3m 41s
build-flatpak (aarch64, gl)	1m 52s
build-psv (gles2, latest, -DUSE_SYSTEM_SDL2=ON -DMPV_NO_FB=ON)	8m 55s
build-macos (AppleSilicon, AppleSilicon)	3m 30s
build-win (x86_64, gl)	10m 11s
build-flatpak (aarch64, gles2)	2m 5s
build-macos (Universal, Universal)	33s
build-win (x86_64, d3d)	10m 10s
build-win (x86, gl)	9m 56s
build-win (x86, d3d)	9m 58s
release	8s
	1h 33m 22s

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