[llvm] [mlgo-utils] Create top level entrypoint scripts for mlgo-utils (PR #146981)

[Vincent Lee via llvm-commits]

thevinster wrote:

> I think a symlink would be fine for now.

With the symlink solution, I needed to move the scripts to `mlgo-utils` directory. I created respective symlinks within the `mlgo/corpus`. Verified by building the package and was still able to execute successfully. Let me know if there's some other path I need to test as well. 

> Buck doesn't do anything to $PYTHONPATH?

Due to constraints out of my reach, I don't have the ability to modify the environment. Even if I could, it's generally discouraged as build systems are meant to handle paths and dependencies internally. 

https://github.com/llvm/llvm-project/pull/146981