* Setup gateway-server with watchers
* Add js script to merge toml config files
* Remove individual watcher configs
* Add all azimuth watchers in stack
* Fix toml-js install
* Use env variables for ipld-eth-server endpoints
* Checkout to version tag in azimuth-watcher-ts repo
Former-commit-id: 5a94aed7f7e150381c0a49a3bcc5b43763333151
