Almost complete RAWImporter

Leaves to think what to do with monthly periodicity indicators
(Where to put the year?)
Finish with RAWImporter

Upload example files with both, yearly and monthly frequency
Upload generated ini file for organization
Add support for organizations description translation
Update yearly example.xlsx
Rename files names getting rid of whitespaces just in case
Merge remote-tracking branch 'origin/develop-importerRAW' into develop