VOL-1451 Openonu now runs using pyvoltha completely

Remove code that now exists in the library.  Modify include paths
Update requirements to more closely reflect pyvoltha requirements.txt

Change-Id: I94c619de82d8ee14cfeb302b3b82be3a26619301
diff --git a/.gitignore b/.gitignore
index 2843ab3..04760cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,3 +62,6 @@
 # voltha cli history
 python/cli/.voltha_cli_history
 
+# Development versions of locally built libraries
+python/pyvoltha
+