Add Terminal Walkways to AYPY Ground Map

[mattkelly4]

Update the AYPY ground map to show the terminal walkways which physically separate the RPT aprons. These prevent aircraft from taxiing to particular taxiways and are important for the controller to be aware of.

Current Ground Map:

Walkways:

Make similar to YPPH ground map (below):

Sounds like it might need to be traced and then imported into SFG.