Added the JSR 362 TCK to the Pluto project.

   View the portlet-tck_3.0/README.txt file for an overview and a usage
   description.

   This contains a generated test framework for the JSR286 compatibility
   portion of the TCK. The framework contains method signature testing
   code along with tests to be developed manually.

   Portlets whose names contains the string 'SIG' contain complete,
   automatically generated test code for the JSR 286 API signature
   tests. These portlets should not be changed manually. The signature
   tests execute correctly on Pluto.

   The remaining portlets contain skeleton code for test cases
   that must be implemented manually. Most of these tests fail, as
   the code has not yet been developed.

   This level was copied from the portletspec3 project on github.
   Going forward, the portlet-tck_3.0 directory on the Pluto project
   will be the home for the TCK. Further TCK development will take place
   on Pluto.