WIP:Expose cocos setting in read_geqdsk

[mikekryjak]

The cocos setting in _geqdsk:

hypnotoad/hypnotoad/geqdsk/_geqdsk.py

Line 170 in 43b0e74

def read(fh, cocos=1):

Was not exposed in read_geqdsk:

hypnotoad/hypnotoad/cases/tokamak.py

Lines 1677 to 1679 in 43b0e74

	from ..geqdsk._geqdsk import read as geq_read
	data = geq_read(filehandle)

• Exposed the setting in read_geqdsk
• Some more testing to ensure there's nothing more to do