Integrate cark park data

[cartwrightian]

Car park data is available. API uses a different ID for stations than timetable data, but appears to be same ID as the livedata. API also has lat/long available.

{ "Id": 1, "State": "Open", "SCN": "ASMPR", "Capacity": 200, "Description": "Ashton Moss Metrolink Car Park", "Occupancy": 0, "LastUpdated": "2019-10-11T04:02:17Z", "LocationId": 1, "Location": { "Id": 1, "LocationSpatial": { "Geography": { "CoordinateSystemId": 4326, "WellKnownText": "POINT (-2.12134393166657 53.4847594327302)", "WellKnownBinary": null } } } }

[cartwrightian]

Not many stations have park and ride, looking at the API only about 8-10 stations would be listed, so for now no plan to implement this.