zink: add a graphics pipeline library implementation

this is only for driver debugging/validation and will not
activate unless ZINK_PIPELINE_LIBRARY_FORCE=1 is specified since it
can only ever add overhead and slow things down

...for now

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17225>
7 files changed