frequency measurement contribution
first step of move to generics
move frequency to generics
Merge branch 'master' into 575_freq_part3
part way through new generics
end of day - part way through last step of generics
Merge branch 'master' into 575_freq_part3
switch to new icons
add new block of frequency data
update freq data schema to match actual implementation
remove unnecessary parameters
switch to new images
finalise generics
Merge branch 'master' into 575_freq_part3
Merge branch 'master' into 575_freq_part3
also store tgt crse/speed in the FMeasurement
implement UI
updated FMeasurement schema
Merge branch 'master' into 575_freq_part3
introduce BaseFrequency for sensor data