KRACOEUS-7374 : Prop Budget Project Income Mock View

Well the Summary table will likely need to be rendered by a DTO of some sort. It will display the period number and a total of all income listed for that period. But since the mocks don't include any classes, I reused the same property name.

In addition, the addDialog and items in the table collection display it 2 different ways due to a bug in the addWithDialog, in that you can't modify the dialog display(header and footer buttons) and have the collection automatically populate the items into the dialog. I'll be creating a Rice jira for this.