TextBoxMask cursor should start at the beginning on focus if empty #756
Description
The TextBoxMask behavior with cursor is the same as the text box but it was mentioned that we could think about putting the cursor at the beginning in case the textbox is empty we the user can easly fill the whole mask.
The problem is most of users using mouse click at the end of the textbox to start typing the mask and it is expected to that the cursor should begin at the beginning like the normal textbox but it won't because it already has the mask value so the cursor will be at the end.
reference #753