[inductor] Add an AOT compilation mode for Inductor CPP backend (#94822)
Summary: The AOT mode currently works for the CPP backend. When turned on, Inductor compiles the model code into a .so file with aot_inductor_entry as the entry function. If the AOT compilation fails, Inductor will explicitly fail.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/94822
Approved by: https://github.com/jansel
