Stored Forked Blocks in Postgres

[mkrump]

Geth drops blocks that are forked. Instead of dropping these blocks we want to store them in a separate postgres table.

[i-norden]

Super Node will persist any forked blocks the node it is syncing from streams out. More specifically, it publishes and indexes all blocks that Geth syncs at its head, where reorgs can still occur. There is no explicit indication in the Super Node db or on IPFS that a block is a forked block- this must be reasoned about by the greater context.