Switched to Apache 2.0 license.
- Updated minimal versions of py_tools_ds and geoarray to 0.18.0 and 0.15.0. Added minimal version 0.5.0 of pyrsr.
- Switched to Apache 2.0 license.
Signed-off-by: Daniel Scheffler danschef@gfz-potsdam.de
Signed-off-by: Daniel Scheffler danschef@gfz-potsdam.de