Finds the points where two google.maps.Polyline intersect each other
arrayLatLng1Array<google.maps.LatLng> array de posiciones google.maps.LatLngarrayLatLng2Array<google.maps.LatLng> array de posiciones google.maps.LatLng
Returns Array<Array<google.maps.LatLngLiteral>> an array with [line1 trimmed at intersection,line2 trimmed at intersection,intersection]