Publish App package for MacOS

[rianadon]

This PR adds app bundles for MacOS to the published artifacts so that you can now drag and drop the LogicAnalyzer program into your applications like a proper MacOS application.

I had hoped to make minimal changes to the publish script, but I needed to:

• On MacOS, run bash directly instead of through wsl. The logic ended up being large so I extracted this into its own function
• Change filenames to use forward slashes instead of backslashes. Afaik Windows works with both.
• Build the MacOS archive and include an icon. This only requires a specific folder structure, so you should be able to build MacOS packages from Windows or Linux.

I had decided to name the zip files app-LogicAnalyzer_6.0.0-osx-x64.app.zip and app-LogicAnalyzer_6.0.0-osx-arm64.app.zip. When you unzip them, you'll see the app show up.

If I have more time I might try to make the icon look a little prettier. Maybe some gradients and shadows will help.

Unfortunately, this doesn't solve the signing/notarization problem.

[gusmanb]

This is a PowerShell script for Windows, does it even run on MacOS?

[rianadon]

Yes :D powershell is cross platform so you can install it with Homebrew on Mac. Bash is usually better for most things but since you already had a powershell script, I figured it would be easier to adapt that.

The only cross platform weirdness is that Mac can't handle backslashes as path separators. I believe Windows supports both forward and backward slashes, hence the change in my pr.