Initial add for MachO support for obj2yaml

Adding the initial files for adding MachO support to obj2yaml. Passing a MachO file will result in a new not_implemented error.

I will be implementing obj2yaml and yaml2obj for MachO in parallel so that one can be used to test the other.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269243 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed