Eth syncing

The sync status object may need to be different depending on the details of Tendermint's sync protocol. However, the 'synced' result is simply a boolean, and can easily be derived from Tendermint's internal sync state.

post
Responses
200
OK
application/json
post
POST / HTTP/1.1
Host: eth_syncing
Accept: */*
200

OK

{
  "id": 1,
  "jsonrpc": "text",
  "result": "text"
}