Added UIExtensions to capture Widget events created by the Cisco UI Extensions editor.
Added a SIMPLWindows example where all bridgeable joins are defined, and an example of controlling some relay blinds in SIMPL originating from a Cisco UI Event, with blind position feedback returned to the Cisco UI.
Updated README with the new bridge serial join 321, and added more help including an example config
Tested on a Cisco Codec Plus RoomOS 10.20.1.6 and a DMPS3-4K-350-C Cntrl Eng [v1.600.3792.19330 .