[mlir][Vector] Add more vector.contract -> outerproduct lowerings and fix vector...

[mlir][Vector] Add more vector.contract -> outerproduct lowerings and fix vector.contract type inference.

This revision expands the types of vector contractions that can be lowered to vector.outerproduct.
All 8 permutation cases are support.
The idiomatic manipulation of AffineMap written declaratively makes this straightforward.

In the process a bug with the vector.contract verifier was uncovered.
The vector shape verification part of the contract op is rewritten to use AffineMap composition.
One bug in the vector `ops.mlir` test is fixed and a new case not yet captured is added
to the vector`invalid.mlir` test.

Differential Revision: https://reviews.llvm.org/D80393