[Console] Add ability to install games from console mode

[veryprofessionaldodo]

This PR adds some new things:

• added ability to install games from within console mode, and sort by installed;
• shows small badge for installing games to have some indication of progress;

Also refactored some things. Extracted launching and installing functions to their own components.

Here's a video of it in action:

heroic-install.mov

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[flavioislima]

Thanks for doing that.
Some feedback so far:
Would be good to have a progress, maybe only the percent, with the installing text.
And also, right now there is no way to know which games are installed or not, so would be nice to differentiate them maybe by using a different opacity level, a uninstalled label or using the same style as on the normal library.