sw: Added sys.path.append() to test scripts

pts/python/leds.py

@@ -47,6 +47,7 @@
 
 # Import system modules
 import sys
+sys.path.append("pyts")
 import time
 import os, errno, re, sys, struct
 import os.path

pts/python/rs485_pulse_rtm.py

 # Import system modules
 import sys
+sys.path.append("pyts")
 import time
 
 # Import common modules

pts/python/sfp_test.py

@@ -53,8 +53,8 @@
 
 # Import system modules
 
-import ctypes
 import sys
+sys.path.append("pyts")
 import time
 import os
 import traceback

pts/python/therm_id.py

@@ -47,6 +47,7 @@
 # Import system modules
 
 import sys
+sys.path.append("pyts")
 import time
 import os
 

pts/python/ttl_pulse_switch.py

@@ -101,6 +101,7 @@
 
 # Import system modules
 import sys
+sys.path.append("pyts")
 import time
 import os, errno, re, struct
 import os.path