AV:Measuring Latency and Lag

Display Lag

 * Testing Display Lag with Time Sleuth
 * Testing Display Lag with Leo Bodnar
 * Testing Display Lag with 240p Test Suite
 * RetroRGB Time Sleuth Tests (WIP)
 * Latest Time Sleuth Firmware

Controller Lag

 * Testing Controller Latency
 * Testing Controller Latency with an Oscilloscope
 * MiSTer Input Latency Results