Pytest-inline

- Change: Support pytest 8

- Change: Remove unused code
- Change: Capture a general Exception (not limited to ImportError and ModuleNotFoundError) when attempting to import modules during collection phase

- Change: Update README

Changed
- Change: Use `itest` instead of `Here` for inline test constructor

Fix
- Fix: inlinetest-only skips collecting inline tests

Added
- Add badges in README

Added
- New README