Added garnet testnet & redstone (OP Stack - preinstalled) (#851)

### Description
Adds deployments for the two OP stack networks:
- Garnet (testnet)
  - Chain id: 17069
  - RPC Url: https://rpc.garnetchain.com
  - Cmd:
  ```bash
curl -s -X POST https://rpc.garnetchain.com -H 'content-type:
application/json' --data
'{"jsonrpc":"2.0","id":0,"method":"eth_getCode","params":["0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7","latest"]}'
| jq -r .result
  ```
- Redstone
  - Chain id: 690
  - RPC Url: https://rpc.redstonechain.com
  - Cmd:
  ```bash
curl -s -X POST https://rpc.redstonechain.com -H 'content-type:
application/json' --data
'{"jsonrpc":"2.0","id":0,"method":"eth_getCode","params":["0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7","latest"]}'
| jq -r .result
  ```

artifacts/17069/deployment.json

@@ -0,0 +1,7 @@
+{
+	"gasPrice": 0,
+	"gasLimit": 0,
+	"signerAddress": "0x0000000000000000000000000000000000000000",
+	"transaction": "0x",
+	"address": "0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7"
+}

artifacts/690/deployment.json

@@ -0,0 +1,7 @@
+{
+	"gasPrice": 0,
+	"gasLimit": 0,
+	"signerAddress": "0x0000000000000000000000000000000000000000",
+	"transaction": "0x",
+	"address": "0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7"
+}