#5 Color name->RGB value conversion

[Sache the Bunny]

As more and more potential plugins use RGB triplets to represent colors, it could be a a good idea to have some routine in vl/includes that allows to convert from a name ("cyan") to a value (0x00FFFF).

...unless this is already natively supported by PHP, in which case just tell me to shut up until I learn PHP ;-)

P.D. Already made name-value table are widely available on Internet (that is, for English names, sorry!). Tell me if you need any reference