Support for Agilent/Keysight triggers

[miek]

• Edge
• Pulse width
• Pattern
• CAN
• Duration
• FlexRay
• I2C
• I2S
• LIN
• MIL-STD-1553
• Nth Edge Burst
• Sequence
• SPI
• TV
• UART
• USB

[azonenberg]

Pulse width and UART triggers are implemented in the current trigger model, so setting them up should be fairly easy.

The other types will need new trigger types created and perhaps some more careful planning. Sequence triggering in particular is likely to require some UI changes on the glscopeclient side (I'm thinking a tab or sub-region of the trigger dialog for each sub-trigger?) Pattern triggering might also need some UI updates.