removing mapgen dependency on split files. Section of map filename contining the measurement type is broken by this

Adding a tagging GUI for Gris Data, allows interactive tagging of existing preview images with a predefined list of tags. Results are stored as csv or python pickle files

L1 keywords

See merge request sdc/sdc_importer!50

Resolve "get obs mode from header"

Closes #74

See merge request sdc/sdc_importer!48

integrating lars

Closes #67

See merge request sdc/sdc_importer!46