* Add CLI to compare entities from two GQL endpoints
* Print out result diffs in compare-entity CLI
* Get the colorized result diff in compare-entity CLI
* Read query dir from config file or as an arg
* Make config file arg required
* Make queries in Example schema similar to that in graph-node
* Get non-colorized output on choosing raw-json diff option
* Make queries in eden-watcher similar to that in graph-node
