[SPIRV] read kernel arg attributes from fuction/module metadata

The patch introduces reading the attributes of kernel arguments both from
function-attached and module-level metadata, during kernel arguments lowering.
Two tests are added to show the improvement.

Differential Revision: https://reviews.llvm.org/D135106



Co-authored-by: Aleksandr Bezzubikov <zuban32s@gmail.com>
Co-authored-by: Michal Paszkowski <michal.paszkowski@outlook.com>
Co-authored-by: Andrey Tretyakov <andrey.tretyakov@mail.com>
Co-authored-by: Konrad Trifunovic <konrad.trifunovic@intel.com>