New SIS3820 APG Arbitrary Pattern Gernerator w. I/O firmware

The new firmware is targeted at the Inline and LVDS on LEMO 00.302 style connector hardware options. It features a 12 bit pattern generator (4 control and 8 frontend outputs) with external wait and wrap functionality. 12 input (4 control and 8 frontend) can be read from a direct and a latched register with the option to use any of the inputs as latch condition.