Build Juno archive node off the data

[Reecepbcups]

mock RPC frontend, return data in the same form as the Juno RPC does.
Does not include Tendermint signing data (not needed anyways for this). so just return blank JSON formats

Need to allow for proving of data as well

Saves 5000GB+ per network to ~51GB per node.

Means blocks which were skipped MUST be set as an empty block in the data. Set time as Unix epoch 1970. Ensure to document