Re-adding pypi package subdir. Added separate module targets in setup.py

packages/pypi/test.py

@@ -0,0 +1,10 @@
+import libzt
+import time
+
+print('joining virtual network...')
+libzt.zts_startjoin('whatev_config', 0x1234567890ABCDEF)
+print('fd = ' + str(libzt.zts_socket(1,2,3)))
+
+print('looping forever, ping me')
+while True:
+    time.sleep(1)