TestManager should allow for selecting suites and test cases to run

[rjrudin]

In support of marklogic/ml-gradle#383

Based on that ticket, we want the following methods added:

JUnitTestSuite runSuite(String suite, String commaDelimitedTestNames, the 3 boolean args)

List<JUnitTestSuite> runSuites(List<String> suites, String commaDelimitedTestNames, the 3 boolean args)

[jamesagardner]

@cskeefer is going to start working this issue.

[rjrudin]

DEVEXP-553

[rjrudin]

See #191.