python: RCInput: add Navio+ support

Add Navio+ entry and auto choice shield

Python/RCInput.py

@@ -1,13 +1,17 @@
-import sys, time
+import time
 
-import navio.rcinput
-import navio.util
+import navio.Common.util
 
-navio.util.check_apm()
-
-rcin = navio.rcinput.RCInput()
+if navio.Common.util.get_navio_version() == "NAVIO2":
+    import navio.Navio2.RCInput as RCInput
+else:
+    import navio.Navio.RCInput as RCInput
 
+navio.Common.util.check_apm()
+
+rcin = RCInput()
 while (True):
     period = rcin.read(2)
     print period
     time.sleep(1)
+