广度优先, UTIL.findPath
type: in 到油罐中去 out 到船上去
taskQueue = [
{ boat: 'Boat1', port: '', station: 'originOil', path1: [1, 5, 52, 12, 24], path2: [73, 35, 74, 412, 63, 7], type: 'in', color: '#f2910a' },
{ boat: 'Boat2', port: '', station: 'finishedOil', path1: [73, 35, 74, 412, 63, 7], path2: [1, 5, 52, 12, 24], type: 'out', color: '#22b2da' }
]