Timings in gpmf data are incorrect for both video and photo inputs

[himynamesdave]

I have noticed an issue with gpmf timings in telemetry output.

see in exiftool output video is 10.6s, but telemetry runs for 51s

<Track1:TrackDuration>10.60 s</Track1:TrackDuration>

<Track2:SampleTime>0:00:51</Track2:SampleTime>

Duration and last sample time should be very close, if not the same. GoPro telemetry seems to be incrementing samples one second, but should be 0.2 seconds (our timelapse videos are hardcoded with 0.2s spacing)

To recreate

python3 telemetry-injector.py -g -i UKBC002-in/ -o UKBC002-out-gpmf/ 

Exiftool output

UKBC002-out-gpmf.txt