CPLD: Remove codec enable signal.
CPLD: Slight syntax change.
CPLD: Change switch inputs to Schmitt to reduce noise (maybe?).
CPLD: Remove codec enable signal from pinout.
PCB: Change fp-lib-table for new repo/directory name.
PCB: Footprint and trace changes to add SMT header alignment pins.

Also removed fills to keep commit/repo size down.
CMake: Use variable substitution for HackRF dependencies
UI: Implement (imperfect) field navigation algorithm.