Cdl baking

Here is an idea for ociobakelut - it doesn't look to be able to bake a CDL, so here is a simple extension to add such a capability. Essentially you just need to feed a cccid into the FileTransform. It is a little ugly as it relies on a variable to track 'state' for which cccid to use, it is passed in even for non-CDL files.

Kevin