[llvm] [mlgo] bazel rules for mlgo-utils (PR #79217)

[Geoffrey Martin-Noble via llvm-commits]

GMNGeoffrey wrote:

I no longer work with LLVM (or on compilers, or at Google, or with Bazel), so am not the right reviewer for this. Added @aeubanks 

https://github.com/llvm/llvm-project/pull/79217