Revamp Auxio's icon entirely. Now it's generally more vibrant [won't
blend into the BG] and will actually has some style to it with an
angular song note instead of the default icon one.
Update the app icon to reflect the new accents. Also move around some
things to make it easier to add dynamic colors later on. Don't make it
follow dynamic colors right now however, as I want to make sure it
lines up with the dynamic pixel icons before I make that change.
Update the auxio icon to be cleaner, make the debug icon more noticable compared to the mainline icon, and move all v26+ adaptive icons to drawable-anydpi-v26, as that is only where they are needed.
