Process Compose MVP (#1775)

## TODO

- [x] Generate process-compose.yml with a Rust CLI

## Moved to next PR
- [ ] Healthcheck for client&channel readiness
- [ ] Open channels between contracts
- [ ] [Lnav](lnav.org) log parser for our log format
- [ ] Upload CosmWasm contracts
- [ ] Don't `--init-fetch` on every connection @benluelo 


```bash
set -o pipefail;
nix run ".#osmosisd" --  query ibc connection connections --node http://localhost:26657 | yq -e '.connections[] | select(.client_id == "09-localhost") |
.state == "STATE_OPEN"'
```

```bash
set -o pipefail;
nix run ".#uniond" --  query ibc client states --node http://localhost:26657 | yq -e '.client_states[] | select(.client_id == "07-tender
mint-0")'
```

## How to run
```bash
nix run .#devnet -L
```

```bash
nix run .#devnet-logs -L
```