[llvm] [mlgo-utils] Hoist entry script out to the correct directory (PR #146981)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 commented:

Have you tested that the binaries still work like this when installed through the pip package? That's the primary way I've been using them.

Why exactly does this need to be changed though? I don't know if the external definitions have ever been tested, and the internal (to Google) rules for these binaries are a bit different because you can't import a python project with a hyphen in it (like `llvm-project`), but it works just fine after symlinking all the files to a different directory in the same structure.

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