* use kaitai to generate parsers
* add scons flag to generate parsers
* add outer layer ephemeris parsing
* create ephemeris packet at the right time
* parse subframe 1 and 2
* add more fields
* add generated files to release
* fix signs
* no cast
* add unordered map include
* add exception handling
* small cleanup
* parse iono data
* cleanup
Willem Melching