Device layouts wishlist

[RobertBeekman]

With the wide range of supported devices, several limitations have come to light.
Most of these are related to changing device layouts at runtime. I think a general approach where devices and their LEDs are completely mutable would be ideal.

Just a few things I've seen pop up over time

• Removing devices after they've been registered
• Replacing the entire layout of a device
  • Maybe take a good look at how paths are resolved while you're at it. I think a configurable LayoutLoader would be nice
  • Then you can set things like the root dir, relatative layout and image dirs or even absolute dirs for everything
  • The loader could also be a good place to give feedback on why layouts weren't loaded
• Changing the shape, size and position of induvidual LEDs

[RobertBeekman]

As a side node for people viewing this: All this is available in the Development tree.

Leaving it open for now until it's merged