KRACOEUS-7604 : propodev budget income page

Another partial work for KRACOEUS-7604 ( propodev budget income page)
For the "Period" , it was a message-field on mockview.  On the php mockups, it should be all texts until the user clicks on "Edit". My test shows that this part of xml also controls the "Add income" dialog. I don't know how to make it as input for the add line dialog then display only on the page. My thought is this display income part after "add" should be part of summary... like the budget period does?