Creates config options for policy.json paths

Removes unsused "path" parameter from rbac_policy_parser.py.
Allows for configuration of policy.json paths by service for
Cinder, Glance, Keystone, Neutron, and Nova.

Change-Id: Ifb386511fd533d587d99de6585ddb78bc17cbc94
diff --git a/releasenotes/notes/config-opts-paths-01e2a5096a1579b8.yaml b/releasenotes/notes/config-opts-paths-01e2a5096a1579b8.yaml
new file mode 100644
index 0000000..3e63c9d
--- /dev/null
+++ b/releasenotes/notes/config-opts-paths-01e2a5096a1579b8.yaml
@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    Refactored framework to remove unused "path"
+    argument. Added config options to allow the path
+    to the policy.json files for Nova, Keystone, Cinder,
+    Neutron, and Glance to be configured without needing
+    to manually change code.