Add 'Right' and 'Below' position options to Field Label display

In D7 and D8, the display options for the label of a field are currently only Above, Inline, and〈hidden〉.
In other words, the only choices for a displayed label position are 'above' and 'left'. This prevents developers/designers from using a position of 'right' or 'below', which should be available.
To accomplish this in the generated HTML, it appears that all that would need to be done is re-order the divs for the field label and the rest of the field.
Thus, it would be good to modify the choices to be Above, Left, Right, Below, and〈hidden〉.
(Field label position selected at admin/structure/types/manage/[content type name]/display).