[RFC] ColorD

[Chad J]

Additionally note that the format syntax handles Walter's concerns here:
http://forum.dlang.org/post/k61t63$pi4$1@digitalmars.com

The color format syntax uses a pair of matched parentheses, and thus 
makes it impossible to leave the console in a different state than when 
the formatting call was entered.

Lower level stuff like terminal functions dedicated specifically to 
saving/restoring state would make sense and be used underneath the 
formatter to accomplish what it does.