Adds proper env variables to start for a VAN Integration

.env.example

@@ -52,4 +52,14 @@ TEXTER_SIDEBOXES=celebration-gif,default-dynamicassignment,default-releasecontac
 OWNER_CONFIGURABLE=ALL
 NGP_VAN_API_KEY=
 NGP_VAN_APP_NAME=
-NGP_VAN_WEBHOOK_BASE_URL=
+NGP_VAN_WEBHOOK_BASE_URL=
+NGP_VAN_API_KEY_ENCRYPTED=
+NGP_VAN_API_BASE_URL=
+NGP_VAN_CACHE_TTL=
+NGP_VAN_EXPORT_JOB_TYPE_ID=
+NGP_VAN_MAXIMUM_LIST_SIZE=
+NGP_VAN_CAUTIOUS_CELL_PHONE_SELECTION=
+ACTION_HANDLERS=
+MESSAGE_HANDLERS=
+CONTACT_LOADERS=
+SERVICE_MANAGERS=