[llvm] [mlir] [mlir][emitc] Add support for C-API/python binding to EmitC dialect (PR #119476)

[Maksim Levental via llvm-commits]

https://github.com/makslevental approved this pull request.

LGTM modulo the nits (bazel maybe needs to be removed...).

Just curious: what's your plan for these bindings?

https://github.com/llvm/llvm-project/pull/119476