Provides scope-dependent alignment options for children layouts where the alignment is handled
by the parent layout rather than the child itself. Different layout models allow different
LayoutGravity options. For example, Row provides Top and Bottom, while Column provides
Start and End.
Unlike LayoutAlign, layout children with LayoutGravity are aligned only after the size
of the parent is known, therefore not affecting the size of the parent in order to achieve
their own alignment.