Prepare GDev parameters

• Conversion to YAML for ĞDev and ĞTest configuration files
• Commenting each parameter value

node/specs/gdev_client-specs.json

-{
-    "name": "ĞDev",
-    "id": "gdev",
-    "chainType": "Live",
-    "bootNodes": [],
-    "telemetryEndpoints": [
-        [
-            "/dns/telemetry.polkadot.io/tcp/443/x-parity-wss/%2Fsubmit%2F",
-            0
-        ]
-    ],
-    "properties": {
-        "tokenDecimals": 2,
-        "tokenSymbol": "ĞD"
-    }
-}
\ No newline at end of file