Grab divecomputer/temperature on CSV export

If temperature is recorded by a DC it must be taken from under the
divecomputer tag. However, this will prefer the manually written value
if such exists.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Take depths from first DC on CSV export

We need to limit the DCs from which we grab the depths. Otherwise, we
end up with too many depth values.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Take pressure info from first DC on CSV export

Try to grab pressure information from first DC if it is not manually
entered.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Include empty location and gps if non is given

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Include some empty fields if they are not available

If specific value is not available, we need to have an empty value
instead.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Support quoting strings with "" on manual CSV import

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Enable firmware updates for OSTC3/OSTC Sport

This enables the dormant OSTC3/OSTC Sport firmware update code, now when
the hw_ostc3_device_fwupdate call is available in libdivecomputer.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>