Logo rework (#1232)

!Allows for new logo format that supports animation!
Also moves logos out of repo into their own repo for ease of management.


Changes:
* Remove deprecated logos
* Draft new Bootloader decoder
* Use new logo handler
* Simplify logo code further
* Fix time bug on static images
* Fix exit at end of animation
* Docs
* Interframe delay in 5ms increments
* Quick pass handling empty updates
* Exit at the end _after_ the frame delay
* One final delay
* Fix for overrun of logo data
* Fixes Ralim/IronOS-Meta#7