declare a few classes stable

Authored by Marcel Hollerbach <mail@marcel-hollerbach.de> on Jul 10 2019, 8:25 AM.


declare a few classes stable

this is the first wave of stablization declarations

fixes T7562
fixes T7846
fixes T7848
fixes T7859
fixes T7860
fixes T7861
fixes T7863
fixes T7878
fixes T7899
fixes T7918
fixes T7919
fixes T7963
fixes T7964
fixes T7965
fixes T7967
fixes T7969
fixes T7970

Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9264