Flight computer

Restructuring of the HUD (SI) program completed. I've implemented some variant of the bridge design pattern to control the different modes of the HUD. I hope that the HUD program this way will be easier to maintain. The hard thing about this project is tat we don't really know from the start how things are going to work. We do have a lot of documentation, but it's far from complete. And when I try to implement one thing we usually find that the way we assumed it worked is simply not true, or at least not the whole truth.

I've now started the flight computer program (CK). But since I haven't worked out the details for the communication between my programs, I included the whole CK program in the SI program with an interface between. This way it should be simple to just lift the CK code to a separate program when I want to. The restructuring means that we've lost some of the functionality. But this is simply a matter of not reaching it at the moment. The code for it is still there.

Since we now have a CK program, I've got the mode selector to work. Start mode is activated and deactivated according to the right conditions.