Add top coalition info

[decodism]

Potentially interesting systemstats functions

func systemstats_get_top_coalitions(_ duration: Int , _ count: Int) -> Unmanaged<NSDictionary>
func systemstats_get_coalition_battery_breakdown(_ duration: Int , _ count: Int) -> Unmanaged<NSDictionary>
func systemstats_get_battery_charge_graph() -> Unmanaged<NSDictionary>
func systemstats_get_time_range_summary(_ startTime: NSDate, _ endTime: NSDate) -> Unmanaged<NSDictionary>

[rurza]

Merged with 796ecf2

Thank you, a lot!