application is now able to select and parse files to Field-Objects

Added Field for holding data of all groynes and calculating routes with it
added Groyne for holding data of a single groyne (just Y-Coordinate and the type, not X-Coordinate)
Added GroyneRun for actually running the algorithm
Added TimedGroyn for holding data of the required time between two groynes and the groynes itself (contains recursively the full route back to the root groyne)