Add faux test suite

It would be great if we could start moving PIL's tests in to a proper test suite i.e. inside a Python package

PIL/tests.py

@@ -0,0 +1,17 @@
+import unittest
+
+
+class PillowTests(unittest.TestCase):
+    """
+    Can we start moving the test suite here?
+    """
+
+    def move_test_suite_here(self):
+        """
+        Great idea!
+        """
+        assert True is True
+
+
+if __name__ == '__main__':
+    unittest.main()

setup.py

@@ -588,6 +588,7 @@ setup(
     include_package_data=True,
     packages=find_packages(),
     scripts=glob.glob("Scripts/pil*.py"),
+    test_suite='PIL.tests',
     keywords=["Imaging",],
     license='Standard PIL License',
     zip_safe=True,