[platform-core-dev] test suites

[DJ Houghton <DJ_Houghton@xxxxxxxxxx>]

A reminder of how the test suites are organized:

- The AutomatedTests class is the one which is used by the automated test
suites to run all our tests.
- There should be an AllTests class in each of our test packages which
calls the #suite() methods for each test class to run in that package.
- The AutomatedTests#suite() method should call the AllTests#suite()
methods for each package.

I have done a quick pass over the runtime and resources tests to make them
match this criteria. (with certain exceptions) I did not make any changes
to the OSGi tests but perhaps this format could be considered by the OSGi
team.