Add program pre-compilation to Vulkan backend
This CL fills out the GrVkGpu::compile method and updates GrVkCaps::makeDesc to both reconstruct the GrVkRenderPass AttachmentsDescriptor and AttachmentFlags from the GrProgramDesc.
In the 'compile' case, the renderPass info is used to get a renderpass and then a pipeline state.
In the 'makeDesc' case, the renderPass info is used to create the ProgramDesc.
Bug: skia:9455
Change-Id: I3810651232c95c3d837d96655853ea54056c70cb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/288462
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
8 files changed
