pygmt.grdmask: Create mask grid from polygons or point coverage(required arguments)

[Chuan1937]

Replace #4428

[seisman]

Add a test for

parse(edge="id", id_start=5, outside=3)

[seisman]

I've tested that id_start can be floating-point numbers and can also be negative.

Suggested change

	if not isinstance(id_start, int) or isinstance(id_start, bool) or id_start < 0:
	raise GMTValueError(
	id_start,
	description="id_start",
	reason="Must be a non-negative integer.",
	)