remove estimations from observation. Refs #21418
remove ghg_estimations field from the observation template
delete unneeded observation of ghg_estimations
delete previously commented field
add ghg_estimations field to conclusions, add and edit forms
make gas a multiple choice schema field fixes #21422
simplify crf_code/category/sector in metadata. Refs #21424
index the value of the sector and category. Refs #21424
reorder imports
remove confidential file. Refs #21425
there is no such a field, use the method
use the method to get the category
documentation of changes
Updating version on trunk after tagging