Get the authenticated user's current points balances and lifetime stats.
Returns giving balance, earned/redeemable balance (earnings), monthly budget,
currency, exchange rate, lifetime earnings, lifetime given, and lifetime redeemed.
Also returns exchange_rate (points per 1 unit of currency) and
purchasing_power_parity_enabled so callers can answer fiat-conversion
questions like "how much is N points worth?".
Use this for any question about your own points balance, earnings, or recognition stats.

Required OAuth scope: user:read