Returns a collection of performance metrics for a specific account. The account performance returns
confidencial information that is only allowed to be viewed by the account owner / owners.
The required fields are ClientKey and either StandardPeriod or FromDate/ToDate.
GET https://gateway.saxobank.com/sim/openapi/hist/v3/perf/{ClientKey}/?AccountGroupKey={AccountGroupKey}&AccountKey={AccountKey}&FromDate={FromDate}&ToDate={ToDate}&StandardPeriod={StandardPeriod}&MockDataId={MockDataId}&FieldGroups={FieldGroups}