Rest Areas

[loganSims]

issue #1

Added a rest area overlay to the traffic map.

Features

• Rest areas can be toggled on and off the map like cameras.
• Clicking on a rest area brings up basic information about the rest area.
• Rest areas are off by default.

  Implementation

• Similar to traffic alerts and cameras.
• Data is location in a JSON file under res/raw/restareas.json. The hope is eventually we can have an API set up for rest area data.
• Cleaned up the traffic menu code.

[loganSims]

The new images added here don't invoke the wrath of issue #83 on the simulator. Not sure about a physical device.