New helper function to simplify the call of a single test function

+misc/runSingleTest.m

+function runSingleTest(testSuite, testName)
+%RUNSINGLETEST runs a single test of a test file
+%   runSingleTest(testSuite, testName) runs the testfunction with the name
+%   'testName' of the 'testSuite'. A testSuite can be produced by
+%   matlab.unittest.TestSuite.from*... or if the tests are defined in a
+%   file, this file can be directly used as testSuite. 
+%	Example:
+%	testSuite = unittests.quantity.testSymbolic
+%	testName = 'testCat'
+%	runSingletest(testSuite, testName)
+testSuite(strcmp({testSuite.ProcedureName}, testName)).run
+end
+

+unittests/readme.md

@@ -3,6 +3,9 @@ To run multiple unittests in packages use:
 If you want to run only the tests for a subpackage, you can use the code:
 	result = run(matlab.unittest.TestSuite.fromPackage('unittests.<subpackage name>', 'IncludingSubpackages', true))
 	
+If you want to run only a single test of a subpackage, you can use the helper function
+	misc.runSingleTest(testSuite, testName)
+
 Some tests need reference results or save data locally in order to improve speed. 
 This is usually done in a setupOnce() function. Therefore, calling unittests for the first time, might take
 a lot longer then afterwards.