Adds new radio frequency colours 

For engineering, security, medical, service and supply.

![](http://puu.sh/63gfE.png)

Expands on a [commit](http://code.google.com/p/tgstation13/source/detail?spec=svn5620&r=5620) made by @Ikarrus in January of this year, which came in handy for knowing which files to modify.