* Add ProcessOutputProxy
* Move launcher to its own field
* Move ProcessOutputCapture to its own file
* Return itself from __enter__ of OpenpilotPrefix
* Integrate ProcessOutputCapture into process_replay
* Add note about capture_output_store to README
* ipykernel import is optional
* Disable type checking for link_with_current_proc
* Remove assertion
* Decode outputs to utf-8
* read(self): return empty buf if its none
* Fix type annotations
* Replace fifo with regular file, to avoid hitting fifo size limit
old-commit-hash: 547a033a3c
