anv: add new low level emission & dirty state tracking

anv: add new low level emission & dirty state tracking

A single Vulkan state can map to multiple fields in different GPU
instructions. This change introduces the bottom half of a simplified
emission mechanism where we do the following :
          Vulkan runtime state
                   |
                   V
        Intermediate driver state
                   |
                   V
         Instruction programming

This way we can detect that the intermediate state didn't change and
avoid HW instruction emission.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24536>