Add Multikey support for the FG1000 (:GF and :GP) to improve useability
by allowing direct entry of strings. This is massively easier than
fiddling with the control knobs.
Also correct interface variable name "frequency" to "period", which is
more accurate.
Periodically (default every 5 s), publish all properties
being tracked by the TriggeredPropertyPublisher.
This ensures that clients created after the TriggeredPropertyPublisher
will receive values for properties that change rarely (e.g. NAV/COM)
- Add new Emesary notification type for NAV/COM data
- Create Update/Publish interfaces using Emesary from properties
- Use interfaces to drive updates to EIS and NAV/COM frequencies
- Change the PageGroupController to a "proper" MFD page
