Minimal runtime for simple examples

End-to-end simple IR example compilation and usage in a rust application (task_parallel)

To try it out:

cargo run --bin hercules_driver hercules_samples/task_parallel/task_parallel.hir "Codegen(\"task_parallel.hbin\")"
cargo run --bin hercules_task_parallel

requested review from @aaronjc4

assigned to @rarbore2

added 5 commits

• 636b78c8...50ef23ff - 4 commits from branch main
• 7aa181c7 - Merge branch 'main' into proc_macro_rt

Compare with previous version

mentioned in commit 73173502

merged