Change type to standardized one in BPM converter class
Add new HW interface defining LED HW behavior and providing LED support functionaity
Redefine IHWLayer to inherit from ILEDHW so the interface is more abstract. !THIS CHNAGE IS NOT COMPATIBLE SO ALL USER OF THIS CLASS HAS TO BE CHANGED But hopefully this change will make it possible to not change it in the future.
Add two new sub interfaces for HW - Buttons and Button + LED inherited. Fix Swithces and RadioButtons to use this new interfaces. Fix related unit tests