Moving config defines into Parameters

[lupus78]

I think we would be better of having some of the defines from config.h transform into parameters. This way user can edit them in runtime and not baked in at build.

I'm thinking about the ones which set what is outputed on the console (WITH_PFLAA, WITH_POGNT, WITH_LOOKOUT, WITH_GDL90, etc...?) and also the WITH_BEEPER or WITH_SOUND. I never used WITH_VARIO, but that would be also nice to have configured.

What do you think?