Adds support for the SPV_INTEL_ternary_bitwise_function extension,
adding;
* the OpBitwiseFunctionINTEL SPIR-V instruction, a ternary bitwise
function where the operation performed is determined by a look-up table
index,
* and the corresponding TernaryBitwiseFunctionINTEL capability.
See
https://github.khronos.org/SPIRV-Registry/extensions/INTEL/SPV_INTEL_ternary_bitwise_function.html.
Signed-off-by: Larsen, Steffen <steffen.larsen@intel.com>