Add a fixturenet-payments stack (#540)

* 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

---------

Co-authored-by: Nabarun <nabarun@deepstacksoft.com>

app/data/stacks/mobymask-v3/stack.yml

@@ -2,15 +2,18 @@ version: "1.0"
 description: "MobyMask v3 stack"
 name: mobymask-v3
 repos:
+  - github.com/cerc-io/ts-nitrov0.1.12
   - github.com/cerc-io/watcher-ts@v0.2.57
-  - github.com/cerc-io/mobymask-v2-watcher-ts@v3
+  - github.com/cerc-io/mobymask-v2-watcher-ts@v3 # TODO: Update after fixes
   - github.com/cerc-io/MobyMask@v0.1.3
-  - github.com/cerc-io/mobymask-ui
+  - github.com/cerc-io/mobymask-ui@v0.2.0
 containers:
+  - cerc/nitro-contracts
   - cerc/watcher-ts
   - cerc/watcher-mobymask-v3
   - cerc/mobymask
   - cerc/mobymask-ui
 pods:
+  - nitro-contracts
   - watcher-mobymask-v3
   - mobymask-app-v3