Make into Fixture

[todo]

Rigbox/tests/fixtures/util/mockRig.m

Lines 21 to 26 in 1f9af30

	% TODO Make into Fixture
	%
	% See also HW.DEVICES
	%
	% 2019-09-30 MW created

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This issue was generated by todo based on a TODO comment in 1f9af30 when #203 was merged. cc @cortex-lab.