Merged in feature/permit-policy-cleanup (pull request #210)

cleanup permit policies and correct documentation

* docs

* policy cleanup

* refactor

* Merge remote-tracking branch 'origin/feature/permit-policy-cleanup' into feature/permit-policy-cleanup

* docs and edits

cmd/auth_related/permit_test/permit.opa.testing/policy-data.json

@@ -0,0 +1,25 @@
+{
+  "users": [
+    {
+      "id": 1,
+      "name": "alice",
+      "role": "admin"
+    },
+    {
+      "id": 2,
+      "name": "bob",
+      "role": "user"
+    },
+    {
+      "id": 3,
+      "name": "charlie",
+      "role": "editor"
+    }
+  ],
+  "permissions": {
+    "admin": ["read", "write", "delete"],
+    "user": ["read"],
+    "editor": ["read", "write"],
+    "write_roles": ["admin", "editor"]
+  }
+}