Controller dialog: Make it more awesome

[garbear]

This improves the controller dialog in several ways:

First, @da-anda and @pkerling removed all logos from controllers in kodi-game/controller-topology-project#30. Just to be safe.

Next, I've exposed the controller descriptions I wrote as part of the Controller Topology Project. Even though logos are gone, we could still be targeted by <insert litigious game company>. Showing descriptions strengthens our argument for fair use because it becomes informative and historical.

Next, because it's so awesome to read descriptions about all controllers, I added "Get all" button below the "Get more..." button to install the entire controller topology project. I've never observed anyone actually using the "Get more..." button, but I wanted a way to install everything in one click.

Next, I removed some code that hides controllers with no mappable features, such as hubs and unfinished controllers. Even though they can't be mapped, with descriptions, it's still fun to read about them.

Finally, I fixed a bug that didn't refresh controller profiles when new ones are installed.

TODO: When the list refreshes with a new controller, it should be made active.

Motivation and Context

Adding ideas that came to me during my DevCon presentation in Sofia.

How Has This Been Tested?

It probably hard-crashes on startup.

But seriously, test builds are here: https://github.com/garbear/xbmc/releases/tag/retroplayer-18beta3-20181001

Screenshots (if appropriate):

Controller descriptions:

"Get all" dialog:

Progress dialog while installing controller add-ons:

Controller profile with nothing to map:

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• None of the above (please explain below)

[garbear]

Test builds uploaded: https://github.com/garbear/xbmc/releases