Add common corrections for airborne gravity data

[leouieda]

Description of the desired feature

Airborne gravity data usually involves correcting for non-gravitational accelerations. It would be great to have these implemented in Harmonica since they are hard to find in other open-source software.

As a reference and example dataset, we could use this open survey from BAS: https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01270#contraints

There is a full record of the processing (with references) and it includes all calculated correction values. We could use this to double check our processing and use as an example in the documentation (illustrating the values of each of these corrections).

This would be best resolved as several pull requests, each adding a different correction.

Are you willing to help implement and maintain this feature? Yes but would welcome anyone wanting to do it.