Correctly handle "none" service status

• Fixes a bug where the "none" service type wasn't shown in the "stopped" state #25 (thanks @gordolio and @yevhensco)

Support for Apple silicon

• Supports Apple silicon natively (and Intel) in one executable
• Looks for Homebrew executable in /usr/local/bin/brew and /opt/Homebrew/bin/brew (but can also be configured)
• Add a Homebrew error menu item if brew services list returns a non-zero exit code.
• Allow a service in error state to be stopped
• New icon in macOs Big Sur visual style (#21)

This is all the work for @stefansundin - thanks! 🙌

UI Responsiveness

• Shows the last version fo the list whilst it's refreshing
• Keep list fresh when a command has finished executing
• Menu items for starting/stopping/restarting all services
• Option-click an item to restart it

Thanks to @stefansundin for the PR #6 implementing these.

Fixes and improvements

Great fixes from @stephank:

• Take brew path from defaults if set
• Fetches service status asyncronously
• Handles bad process exit status
• Handles unknown statuses better

New icon

• New monochrome menu bar icon as suggested by @nottix in #1
• Uses same icon for App icon

Initial release

Super-simple menu bar GUI for displaying the state of homebrew services and starting/stopping them.

You need https://github.com/Homebrew/homebrew-services to be installed.

Currently it expects homebrew to be found at /usr/local/bin/brew