Refactor PM, add pass to seralize module

Cargo.lock

hercules_ir/Cargo.toml

hercules_ir/src/ir.rs

hercules_opt/src/pass.rs

hercules_rt_proc/src/lib.rs

hercules_samples/matmul/src/main.rs

hercules_tools/hercules_driver/Cargo.toml

hercules_tools/hercules_driver/src/main.rs