ADD: return short codes on pool object
Add short codes #1402 (closed)
on the pool object, like:
(if none, don't return)
{
"asset": "AVAX.AVAX",
"short_code": "a" // new parameter
"status": "Available",
"pending_inbound_asset": "1022399010",
"pending_inbound_rune": "0",
"balance_asset": "3811596161206",
"balance_rune": "53497646433408",
"pool_units": "31040573620094",
"LP_units": "24901623964525",
"synth_units": "6138949655569",
"synth_supply": "1507652353812",
"savers_depth": "1504806713385",
"savers_units": "1433727163776",
"synth_mint_paused": false,
"synth_supply_remaining": "3066263039635",
"loan_collateral": "0"
}