Added support for linear USDC settled swaps:
```
node examples/js/cli deribit createOrder LINK/USDC:USDC market buy 1
deribit.createOrder (LINK/USDC:USDC, market, buy, 1)
2022-12-20T05:22:05.316Z iteration 0 passed in 195 ms
{
info: {
web: false,
time_in_force: 'good_til_cancelled',
risk_reducing: false,
replaced: false,
reduce_only: false,
profit_loss: '0.0',
price: '6.121',
post_only: false,
order_type: 'market',
order_state: 'filled',
order_id: 'USDC-3570684930',
mmp: false,
max_show: '1.0',
last_update_timestamp: '1671513728033',
label: '',
is_liquidation: false,
instrument_name: 'LINK_USDC-PERPETUAL',
filled_amount: '1.0',
direction: 'buy',
creation_timestamp: '1671513728033',
commission: '0.0030145',
average_price: '6.029',
api: true,
amount: '1.0',
trades: [
{
trade_seq: '58742',
trade_id: 'USDC-6634134',
timestamp: '1671513728033',
tick_direction: '0',
state: 'filled',
self_trade: false,
risk_reducing: false,
reduce_only: false,
profit_loss: '0.0',
price: '6.029',
post_only: false,
order_type: 'market',
order_id: 'USDC-3570684930',
mmp: false,
matching_id: null,
mark_price: '6.0308',
liquidity: 'T',
instrument_name: 'LINK_USDC-PERPETUAL',
index_price: '6.0377',
fee_currency: 'USDC',
fee: '0.0030145',
direction: 'buy',
api: true,
amount: '1.0'
}
]
},
id: 'USDC-3570684930',
clientOrderId: undefined,
timestamp: 1671513728033,
datetime: '2022-12-20T05:22:08.033Z',
lastTradeTimestamp: 1671513728033,
symbol: 'LINK/USDC:USDC',
type: 'market',
timeInForce: 'GTC',
postOnly: false,
side: 'buy',
price: 6.121,
stopPrice: undefined,
amount: 1,
cost: 6.029,
average: 6.029,
filled: 1,
remaining: 0,
status: 'closed',
fee: { cost: '0.0030145', currency: 'LINK' },
trades: [
{
id: 'USDC-6634134',
info: {
trade_seq: '58742',
trade_id: 'USDC-6634134',
timestamp: '1671513728033',
tick_direction: '0',
state: 'filled',
self_trade: false,
risk_reducing: false,
reduce_only: false,
profit_loss: '0.0',
price: '6.029',
post_only: false,
order_type: 'market',
order_id: 'USDC-3570684930',
mmp: false,
matching_id: null,
mark_price: '6.0308',
liquidity: 'T',
instrument_name: 'LINK_USDC-PERPETUAL',
index_price: '6.0377',
fee_currency: 'USDC',
fee: '0.0030145',
direction: 'buy',
api: true,
amount: '1.0'
},
timestamp: 1671513728033,
datetime: '2022-12-20T05:22:08.033Z',
symbol: 'LINK/USDC:USDC',
order: 'USDC-3570684930',
type: 'market',
side: 'buy',
takerOrMaker: 'taker',
price: 6.029,
amount: 1,
cost: 6.029,
fee: { cost: 0.0030145, currency: 'USDC' },
fees: [ { currency: 'USDC', cost: '0.0030145' } ]
}
],
fees: [ { currency: 'USDC', cost: 0.0030145 } ]
}
```