WIP for #78731: we will try retrieving features and adding it to a vectorial layer.
Test of WIP changes for #78731 (Selection)
Merge branch '8.5-SNAPSHOT' of github.com:Emergya/sir-geoexplorer-base-js into 8.5-SNAPSHOT
Merged changes from upstream (even minen).
Merge branch '8.5-SNAPSHOT' of github.com:Emergya/sir-geoexplorer-base-js into 8.5-SNAPSHOT
Merge pull request #116 from luisromangz/8.5-SNAPSHOT

Advances for #78731: Adds feature editor tool and improves feature adding.