fill out binding API

[2bndy5]

The cpp-linter-rs API is finally lamenting into a stable v2 API.

I think it would be beneficial for the bindings to have some API that we can use for reproduction of incoming issues.

The v1 (pure-python) API was very handy at reproducing reported issues because I could track down which function was misbehaving.

While async support in the node.js binding (via napi-rs) should be adequate, the python binding (via pyo3) has very limited support for async API (via pyo3-async-runtimes).

Warning

The python API may or may not be backward compatible with cpp-linter v1 API.

It may be easier to write thin wrappers around the rust API, but this is kind of a pain because thin wrappers do not inherit docs from the rust API.