Add PYO3_PATH configuration to reduce spurious compiles

[twitu]

Pull Request

cargo performs frequent recompiles because of a difference in Python path between CLI and rust analyzer environments. ^1

Type of change

• [x] This change requires a documentation update

How has this change been tested?

Ran cli cargo build and made then cargo check using rust analyzer in vs code, only relevant changes were compiled.

[cjdsellers]

Great idea, thanks @twitu