Reorganize test dir to ensure test of installed pkg

tests/test_structural_sw_rw/testcase.py

@@ -0,0 +1,15 @@
+from parameterized import parameterized_class
+
+from ..lib.sim_testcase import SimTestCase
+from ..lib.synth_testcase import SynthTestCase
+from ..lib.test_params import TEST_PARAMS
+
+@parameterized_class(TEST_PARAMS)
+class Test(SimTestCase):
+    def test_dut(self):
+        self.run_test()
+
+@parameterized_class(TEST_PARAMS)
+class TestSynth(SynthTestCase):
+    def test_dut(self):
+        self.run_synth()