StartSaleUi

Created Ui to view sales,  make a new sale and add new customer and
BookingUpdate

Created booking wpf draft
Merge remote-tracking branch 'origin/master' into StartSaleUi
customercombo

loadCustomers into combobox in new sale
half finished save customer

half finished commit nothing new
Merge remote-tracking branch 'origin/StartSaleUi' into DataAccessOliverUi

Conflicts:
	LonelyTreeTimeLimits/DataAccess/DataAccessFacade.cs
	LonelyTreeTimeLimits/Model/ModelFacade.cs