Simplify `nidcpower`, `nifgen` event configuration

[marcoskirsch]

Zen of Python:

Simple is better than complex.

NI-FGEN (and to a lesser degree NI-DCPower) provides a lot of configurability for triggers and events. You can change polarity, play with pulse width, set them as level instead of pulses... It's extremely rare to configure these and it's also not supported by the "latest and greatest" NI-FGEN device family 54x3.

For those reasons, we should remove the properties for all events:

• event_level_active_level
• event_output_behavior
• event_pulse_polarity
• event_pulse_width
• event_pulse_width_units
• event_toggle_initial_state
• event_live_status
• event_latched_status
• event_delay
• event_delay_units

Keep:

• event_output_terminal

For debate:

• nidcpower.Session.measure_complete_event_delay: Is there still a reason to keep this around?

[marcoskirsch]

nidcpower.Session.measure_complete_event_delay: Is there still a reason to keep this around?

What was the final decision on this?

[marcoskirsch]

If any of these attributes are ever re-added, we should ensure that the enums are not duplicated for every single property. It should be possible to reuse the enums.