Set up cache in vulkan to reuse GrVkPrograms (aka VkPipelines)

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1816153002

Review URL: https://codereview.chromium.org/1816153002
26 files changed