fix: added chainTypes in network

[manjeet-fetchai]

Error:

ERROR Failed to decode message Error: Unregistered type url: /cosmos.slashing.v1beta1.MsgUnjail
2022-08-29T05:03:27.875Z <fetch> ERROR failed to index block at height 2590346 handleMessage() Error: Unregistered type url: /cosmos.slashing.v1beta1.MsgUnjail

Solution:

• move chainTypes to network section instead of dataSources https://github.com/subquery/cosmos-subql-dictionaries/blob/main/project_fetchhub.yaml#L17