Delete right should imply View and Edit

The idea of this improvment is to clarify the behaviour and usecases when using the delete right. Right now Delete right doesn't imply any other right, so it's possible that a user without view right to perform deletion of a document.
This can be very misleading for users, so I proposed to change that so that Delete implies both View and Edit rights. The proposal was opened on the forum here: https://forum.xwiki.org/t/change-delete-right-so-that-it-implies-view-right/11228