util/primconvert: handle rewriting of prim-restart draws with unsupported primtype

util/primconvert: handle rewriting of prim-restart draws with unsupported primtype

this is a bit more work, as the primitive restart needs to be rewritten into a multidraw,
then the multidraw converted to the new primitive type and serialized back into a
single draw

detection is handled using a new primconvert config member, which is set to the full
primtype mask by default for compatibility with existing drivers

Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10973>