[mlir][Linalg] Add a ComprehensiveModuleBufferizePass and support for CallOp analysis(9/n)

This revision adds the minimal plumbing to create a simple ComprehensiveModuleBufferizePass that can behave conservatively in the presence of CallOps.

A topological sort of caller/callee is performed and, if the call-graph is cycle-free, analysis can proceed.

Differential revision: https://reviews.llvm.org/D104859