Bad bounding box creation

[WilliamJamieson]

When writing https://github.com/spacetelescope/romancal/pull/1527/files#r1850595590, I realized that

romancal/romancal/assign_wcs/utils.py

Lines 20 to 35 in 281aa55

	def wcs_bbox_from_shape(shape):
	"""Create a bounding box from the shape of the data.
	This is appropriate to attach to a wcs object.
	Parameters
	----------
	shape : tuple
	The shape attribute from a `numpy.ndarray` array.
	Returns
	-------
	bbox : tuple
	Bounding box in x, y order.
	"""
	bbox = ((-0.5, shape[-1] - 0.5), (-0.5, shape[-2] - 0.5))
	return bbox

does not create an x, y bounding box like it reports to. Rather it does create a y, x bounding box if you look at he shape[-1] and shape[-2] arguments.

Note that the function is used in several places other than where I made my comment and any fix to it would break the code that is being fixed in #1527 that is referenced by my comment.