• Initializes a [CLLocation] from a JSON string at a given filePath.

    The JSON string must conform to the following structure: [{ latitude: 37.8, // latitude or lat longitude: -122.4 // longitude, lng, or lon verticalAccuracy: 4, speed: 21.0 horizontalAccuracy: 5, course: 0.48 timestamp: 1497475447, // timestamp as unix timestamp or ISO8601Date altitude: 57.26 }]