GamerOS 7

Key components:

• linux 5.3.6
• mesa 19.2.1
• nvidia 435.21
• steam-tweaks 0.1.1
• steamos-compositor-plus 1.4.1

Changelog:

• various emulators now pre-installed
• Steam grid image caching for offline mode (steam-tweaks)
• Steam shortcut management via yaml configuration files (steam-tweaks)