* Add a fixturenet-payments stack
* Export the WebSocket port in fixturenet-eth-geth service
* Add container to run a go-nitro node
* Add container to deploy Nitro contracts
* Read contract addresses from a volume when running the Nitro node
* Add a service for Nitro reverse payment proxy
* Expose payment proxy endpoint to be accessible from host
* Map nitro node messaging and payment proxy ports to host
* Use container to deploy Nitro contracts in mobymask-v3 stack
* Use a common contract deployment script from mobymask-v3 stack
* Add MobyMask contract deployment and watcher services
* Fixes for contract deployment and watcher scripts
* Add a container and service for mobymask-snap
* Add MobyMask app service
* Add container and service for a ponder app
* Fix ponder setup and update instructions
* Handle review comments
* Use enablepaidrpcmethods flag in reverse payment proxy server
* Update go-nitro branch
* Fixes for mobymask-v3 stack
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Co-authored-by: Nabarun <nabarun@deepstacksoft.com>