Vulkan: Request used features Some features were used but not enabled. There is no validation error for this. This change enables the following features: - shaderStorageBufferArrayDynamicIndexing: used by atomic counter emulation. - shaderSampledImageArrayDynamicIndexing: used by sampler array of array emulation, as well EXT_gpu_shader5. - shaderUniformBufferArrayDynamicIndexing: used by EXT_gpu_shader5. Bug: angleproject:4071 Change-Id: I582750d1552055deeec50485e6511788b98490c2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032144 Reviewed-by: Tobin Ehlis <tobine@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>