Time Library added to Playground

mem there is no sync program in the zip file that users can use to send through their serial port to the arduino. I'm new to hardware programming and I assumed that the Arduino program would request it from the port itself instead of the computer being required to send it.

Peeter123's program was extremely helpful with getting it to work for me. File link on page 2 and his source is on page 3.

It would also be good to note about which pins the RTC goes in (of course they can find that out from the wire library description) and about the autoreset in the Time documentation as well.