Fixed timing errors in Image Filter core
SDK: Updated SDK project for 14.6 + Ethernet core
SDK: Added Ethernet init and UDP send functions
Currently not used in main loop
Added EthernetImage C# program
Allows image capture over Ethernet (similar to UART program)
SDK: Implemented Ethernet screenshot transmission
Replaces UART method for now
SDK: Added position and thresholds gor Guitar Hero
SDK: Changed SW3 to output status over UART