[7202]: Remove key entities from the selected portal user

Signed-off-by: Ayoub Zayati <ayoub.ezzayati@exoplatform.com>
[7177]: Add key entities to the selected portal user (Review code)

Signed-off-by: Ayoub Zayati <ayoub.ezzayati@exoplatform.com>
Merge branch 'master' of https://github.com/mkrout/Wennsoft

Conflicts:
	userManagementExtension/portlets/src/main/java/com/wennsoft/portlet/component/keyEntitiesManagementPortlet/UIKeyEntitiesAdd.java
	userManagementExtension/portlets/src/main/java/com/wennsoft/portlet/component/keyEntitiesManagementPortlet/UIKeyEntitiesManagementPortlet.java

Signed-off-by: Ayoub Zayati <ayoub.ezzayati@exoplatform.com>