Add details for display in Max Package Manager

[HighHarmonics2]

Low priority - but nice to have.

With the release .dmg installer, chuck-max shows up in the Max Package Manager, but is missing some of the standard display items found in Installed Packages:

• icon
• About
• System Requirements shows OSX: Unsupported
  

[shakfu]

I didn't even know that this came up in the Package Manager.

We are still a long way from releasing something package-manager worthy as you need to have docs, a decent icon, package-info.json, and also Windows support

[shakfu]

@HighHarmonics2

I created a couple of logos, but then after thinking about it some more, I realized that it's bad form to use any of the chuck logo elements in the chuck-max logo without permission.