Vulkan: Add ExtendedDirtyBitType bitset ExtendedDirtyBitType qualifies DIRTY_BIT_EXTENDED dirtybit. Clip control code path can now set the appropriate ExtendedDirtyBitType when there is a change in state. Also remove the ClipSpaceOrigin member in the Vulkan backend that cached front-end state. Bug: angleproject:5471 Tests: dEQP-GLES2.functional.clip_control.* Change-Id: I8dbb509ef940e7905439d32483fd67a8fc171a6e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2673062 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Mohan Maiya <m.maiya@samsung.com>