Create a Compute Sanitizer executor for lit.

This might help us catch issues earlier.

I envision something like:

`lit -Dexecutor="SanitizerExecutor()"`

or

`cmake ... -DLIBCUDACXX_LIT_SANITIZER=ON`

The SanitizerExecutor would need to be defined in our python config and would just wrap the normal executor function but launch the executable through the toolkit's sanitizer.
```[tasklist]
### Tasks
```