Maintenance (#115)

* fixed fetch globsed test

* added fetch eigen geoid and test

* add shading kwarg to plot_grd

* added etopo fetch and test

* added reverse_cpt kwargs to plot_grd

* maintenance

* added disturbance and error to antgg-update grav

* added fetch and test for REMA 1km

* added 500m version for fetch REMA

* added fetch and test bedmap point data

* format at check

* add verbose option to fetch bedmap2 and bedmachine

* add kwgs to mask_from_shp and points_inside_region

* formatting