FMC navdata and calculation plugin

[remenkemi]

To-Do list:

• [x] Implementation of REF NAV DATA page(FMC side)
• [x] Implementation of REF NAV DATA page(CDU side)
• [x] Implementation of RTE1 page(FMC side)
• [x] Implementation of RTE1 page(CDU side)
• [ ] Implementation of NAV RADIO page(FMC side)
• [ ] Implementation of NAV RADIO page(CDU side)
• [x] Implementation of SEL DESIRED WPT page(FMC side)
• [x] Implementation of SEL DESIRED WPT page(CDU side)
• [ ] Partial implementation of POS REF page(radio position only, FMC side)
• [ ] Partial implementation of POS REF page(radio position only, CDU side)

[remenkemi]

~~Waiting on 2 fixes: @BRUHegg: fix indentation of POI names on SEL DESIRED WAYPOINT @remenkemi: sel desired waypoint not selecting figure out persistent not in database notification~~

[remenkemi]

I need to double check select desired wpt to make sure all poi types are displaying correctly, otherwise this is ready to merge

[remenkemi]

This is ultimately waiting on @nathroxer to at least finish the MCP remodel so we can implement the button lights.