The Panopticon/Torchwood audio stories navigations template(s)

Currently, all Torchwood audio stories are placed within one joint template: {{TorchwoodAudio}}. While there's technically nothing wrong with that, there are now simply too many ranges and "sub-ranges" within it.

My proposal is that we split it into four templates:

• one for all BBC Audio stories
• one for BF's "monthly range" and special releases
• one for Torchwood One
• one for Torchwood: The Story Continues

The stories in each of these ranges are as disjoint as, say BBC Doctor Who audio stories, Main Range, Fourth Doctor Adventures (audio series) and The War Doctor (audio series).

I've created these split navboxes on my sandbox to help exemplify my point.