Add USF Golf cart info

[barbeau]

Summary:

We have a MQTT feed for USF Golf Cart info from OCCAM that we could somehow integrate into the Layer.

Here's a Word Doc with some info (minus credentials and endpoint info):
CUTR Golf Cart Tracker Access Information - public.docx

EDIT April 3, 2018 - More info on the feed:

1. The position update frequency is once every ten (10) seconds per cart
2. There are currently two carts being tracked on USF. One owned by CUTR and one owned by USF IT. Information provided in the file I sent was solely for CUTR’s cart but I can provide information for all carts. .... Generally, every cart/mote has a unique Device Address identifier (001a442e – plus leading zeros in the CUTR cart’s case), which could be used as UID for mapping, as these IDs are hardcoded into the mote directly. If you design your system around using the Dev Addr as UID, we could provide you with the IDs as they come online...

Steps to reproduce:

Look for USF Golf Cart info on the map Layer

Expected behavior:

Show either real-time or historical golf cart info

Observed behavior:

There is no USF Golf Cart info

[barbeau]

An intro to MQTT and Java:
http://tugdualgrall.blogspot.com/2017/01/getting-started-with-mqtt-and-java.html