add state diffs.

This is pending a future go-ubiq release. But creating issue for tracking/discussion purposes.

update token transfer logic to new events based model. See spectrum-interface.This will allow shinobi transfers to appear in token transfer properly.

some refactoring of schemas could potentially improve performance.

for example, adding txn trace to the txn itself (even if duplicated).
adding txns in full to blocks (even if duplicated)

approach from a query perspective. minimize queries even if it requires duplicating data in mongo, storage is a cheap price to pay for faster responses/load times.

ERROR[04-27|15:33:51.510] aborted sync 
ERROR[04-27|15:33:58.485] couldn't add trace to db                 err="multiple write errors: [{write errors: [{E11000 duplicate key error collection: ubiqscandb.internaltxns index: txHashIndex dup key: { hash: \"0xa5828b1371157b8e8b5d642433b35b72ff5d5da276ac8cba3eada62817dda5ea\" }}]}, {<nil>}]"

If go-spectrum doesnt exit cleanly upon restart it can find itself stuck in a loop, unable to sync due to duplicate keys.

Removing the document in question restores functionality.

e.g

db.internaltxns.deleteOne({"hash":"0xa5828b1371157b8e8b5d642433b35b72ff5d5da276ac8cba3eada62817dda5ea"})

removing the original, allowing for the new to be added.

rpc discover currently returns with info.title: "go-ubiq JSON-RPC" this should be updated to "go-spectrum JSON-RPC"