[mlir][memref] Fix ExpandShapeOp verifier

* Complete rewrite of the verifier.
* CollapseShapeOp verifier will be updated in a subsequent commit.
* Update and expand op documentation.
* Add a new builder that infers the result type based on the source type, result shape and reassociation indices. In essence, only the result layout map is inferred.

Differential Revision: https://reviews.llvm.org/D122641