Add airstack CLI tool for developer convenience

[andrewjong]

This PR adds a new airstack CLI tool to simplify common development tasks.

Features:

• Installation: ./airstack.sh install installs Docker Engine, Docker Compose, etc.
• Setup: ./airstack.sh setup configures private keys and adds the airstack tool to shell profile
• Container Management: airstack up, airstack connect, airstack down etc. for managing Docker containers
• Smart Container Matching: Partial name matching for containers with interactive selection when multiple matches are found
• Extensible Architecture: Modular design allows easy addition of new commands

Implementation Details:

• Written in Bash for maximum compatibility
• Includes comprehensive help system
• Supports multiple operating systems
• Provides detailed documentation in .airstack/README.md

[andrewjong]

FYI @jfkeller @adityarauniyar , this integrates in the previous ./configure.sh and WINTAK installation scripts as well. Now it's all together within the airstack cli tool.

these commands work for wintak:

• ./airstack.sh install --with-wintak
• airstack wintak:start
• airstack wintak:stop

[jfkeller]

The readme mentions launch but I think it has been replaced with up.

I think there might be issues if there are multiple installations of airstack. I often have multiple for my own development, checking the most recent branch, and checking pull requests. When I cloned two airstack repos, the install script on the second didn't modify the bashrc so I think it the airstack command is looking in the first repo. Maybe it isn't an issue if people aren't expected to have multiple instances.

I didn't try the wintak related commands.

[andrewjong]

Thanks John!

Fixed the README.

For multiple installations, I've updated the airstack function to search up the directory tree for airstack.sh. This way you can have multiple repositories installed and it will call the script that's part of the repo you're under.

[andrewjong]

John approved over Slack, merging.