Make Instruments Proper Qt Widgets

[birkelbach]

The current instruments contain the code that communicates with the FIX database within them. It would make more sense to decouple this code from the instruments and handle those connections externally.

Also, if the instruments were proper Qt Widgets then we have other advantages from a configuration standpoint as well as the ability to use these instruments in other projects or use other 3rd party widgets in pyEfis.

It would make the graphics a little easier too because we can use the Qt layout tools and the possibly even Qt Designer to layout screens.