Add SampleAction and SampleSubsystem to the project

Import the performance test and schedule source files into the testproj project.

1. Open the Java perspective, open src, and then right-click test.

2. Select Import.

3. Import SampleAction.java and SampleSubsystem.java.

4. Edit the generated subtest file. The name will begin with Subtest_Test_ and end in .java.

5. At the bottom of the constructor for the test, add the following line: add(new SampleAction(this, "Sample Action"));