Added a bunch of stuff for Arduino serial communication

I added the code to display the temperature on Game1 and I added it to
the serial port selector, and I put some quick code together to
differentiate between a message relating to the relays or a message
relating to the temperature. Temperature readings begin with a 1, relay
stuff is a 2. Reset is a 0. So I adjusted the code on the Arduino side
to add a "1" in front of all readings. However, when I run the program
it doesn't show the temperature. It does show it on Arduino's serial
monitor though, so I know it's working. Then I just commented out all
the complicated-ish code and just said lastReadTemperature =
ReadString() and then I got an exception under temperature (although
when I reset the Arduino it gave some weird random number, so the
connection is definitely there).

I really would like to be able to see a console window so I can see the
things I am printing to the console. If Visual Studio doesn't have one,
could we write one really quickly for debugging purposes?
Now using properties in the arduino stuff!

Wow, aren't we fancy!
Now displays temperature properly

and I fixed some property stuff