Feature Request: allowing for sending commands to A-Shell with URL schemes.

URL schemes are described [here](https://developer.apple.com/documentation/xcode/defining-a-custom-url-scheme-for-your-app) on the Apple Developer website. A-shell could have a URL scheme like this: ashell:command?command=command.

Here's an example: `ashell:command?command=jump%20folder%0Apython3%20file.py`, which would run the commands `jump folder` and `python3 file.py`.