Generates random colour. You can either choose random from the whole pool or random within 1 colour type pool.
example:
$my=new GetColor();
$my->addColor("new color"); //You can add your own colour here
$my->getRandomColor(3, false, false)
first parameter = number - how many colours do you want
second parameter one type? = true/false - do you want one type or many colour types (Colours are divided into same colour category)
third parameter repeat colors = true/false - can colours appear more than once?