v0.4.0

Introduces hypothetical/better compatibility with new Max Package Manager.

Changelog

• Add icon.png for display in Max 7 Package Manager
• Rewrite package-info.json to better match new Max 7 format
• Include cs.2click-remote in init & interfaces
• Rename README.maxpat —> cs.2click-README.maxpat
• Various help file & README tweaks