Morph slider test

Chris has been testing out a system for using a set of sliders in the viewport to control the morph targets of the characters. This isn't something we've devised from scratch, there are plenty of examples of it around but Chris is doing a great job of getting it working for our characters. Given that animators and artists are primarily visual people this seems like a much better system than inputting values to control the face morphs. Plus its can easily combine two morphs onto one controller which gives some great results, for example the eyebrows on Tom are seperate objects to the rest of the head (this is so we can make sure they don't cast ugly shadows over his face) but by using the slider control system we can combine their seperate morph animation into the one controller.