Create tests for remaining methods

[todo]

Rigbox/tests/StimulusControl_test.m

Lines 3 to 8 in 78da4c7

	% TODO Create tests for remaining methods
	classdef (SharedTestFixtures={ % add 'fixtures' folder as test fixture
	matlab.unittest.fixtures.PathFixture('fixtures'),...
	matlab.unittest.fixtures.PathFixture(['fixtures' filesep 'util'])})...
	StimulusControl_test < matlab.unittest.TestCase & matlab.mock.TestCase

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This issue was generated by todo based on a TODO comment in 78da4c7 when #220 was merged. cc @cortex-lab.