Jusify() normalizes the rectangle so both the Width and Height are
positive, without changing the location of the rectangle. It ensures
that the x and y coordinates will be moved to the top left of the
rectangle.
The name is strange, so renaming Justify() to Normalize().
Change-Id: Idbf163e65e52a798e38f785b8961b8042cf0cf2a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137379
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>