OP-1331 uncrustified
OP-1331 factored common code between InputChannelForm and OutputChannelForm into new abstract class ChannelForm
OP-1346 GCS was not allowing setting the ResponseTime for the Collective input channel.
Worse GCS would then shift the values (Accessory0 would go to Collective, Accessory1 to Accessory0,
Accessory2 to Accessory1 and Accessory2 would always be zero)