[Sidechain] add roles: authoring & non-authoring #947
Description
Similar to the concept of RPC nodes in substrate, it might sense to distinguish between authoring and non-authoring sidechain-nodes, where non-authoring nodes will never produce sidechain blocks, but they still receive the state updates. Authoring nodes are our current validateers.
Those non-authoring nodes can be used as RPC endpoints for clients and do:
- gossip trusted calls to authoring nodes
- execute trusted getters
With this we can reduce the load on authoring nodes/validateers and ensure that they work more stable.
Not an urgent task.