Update to include Rover MEMS trigger patterns

[mike501]

Rover MEMS patterns added without cam details as they're not currently available. Patterns as below with trigger at 55 degress BTDC,
MEMS pre 1.9 (1.0, 1.3 etc) - 36-1-1 gaps at 0 degrees and 180 degrees
MEMS 1.9 36-1-1-1-1 gaps at 0, 100, 180, 310
MEMS 2.0 36-1-1-1-1 gaps at 30,60, 210, 250
MEMS 3.0 36-1-1-1-1 gaps at 80, 110, 260, 300

[mike501]

Patterns will need updating - found a bug with original update. Have updated code but still learning git to push update out.

[trevorgetty]

Brilliant work mike - I want to put this Ardu-stim work /branch onto mine to test on the SPI Mini I have. So I have now verified the 36-1-1-1 ( 4 gap pattern ) on the t16 2.0 t series engine, on MEMS1.6, and the later MEMS3 VVC k series.

So the mini uses the earlier 36-1-1 ( 2 gap ) pattern, and I have a few new ECUs, some where mems1.3 and some mems1.6 and they are a little difficult to get mapped without desoldering and putting on a new eeprom. So if I could get the SPI mini config onto speeduino and tested using this would be great. I will let you know how I get on.