[SPIRV] Add vector reduction instructions (#82786)

This PR is to add vector reduction instructions according to
https://llvm.org/docs/GlobalISel/GenericOpcode.html#vector-reduction-operations
and widen in such a way a range of successful supported conversions,
covering new cases of vector reduction instructions which IRTranslator
is unable to resolve.

By legalizing vector reduction instructions we introduce a new
instruction patterns that should be addressed, including patterns that
are delegated to pre-legalize step. To address this problem, a new pass
is added that is to bring newly generated instructions after
legalization to an aspect required by instruction selection.

Expected overheads for existing cases is minimal, because a new pass is
working only with newly introduced instructions, otherwise it's just a
additional code traverse without any actions.