efl: apply the stabilzed column of the efl api board
The project https://phab.enlightenment.org/tag/efl_api/ has been used in
the last few weeks to figure out which classes can be stablized and
which cannot. This commit moves those dedicated classes outside beta.
And makes them stable.
Depends on D8272
Reviewers: cedric, stefan_schmidt, zmike, segfaultxavi
Reviewed By: segfaultxavi
Maniphest Tasks: T7672, T7601, T7600, T7599, T7598, T7597, T7596, T7594, T7593, T7591, T7590, T7589, T7588, T7584, T7583, T7582, T7581, T7577, T7576, T7571, T7570, T7567, T7564, T7563, T7560, T7559, T7558, T7555, T7554, T7553, T7512, T7511
Differential Revision: https://phab.enlightenment.org/D8273