Add [bw_archive] shortcode to wrap wp_get_archives

[bobbingwide]

The Archives widget only displays posts. We need to display the archive for other post types.

Requirements

• display archive list for post types other than post
• support parameters accepted by wp_get_archives

Proposed solution

• [bw_archive] shortcode
• automatic detection of post type for the archive?

[bobbingwide]

We need to check what happens when it creates links! When it creates links by date then the URL is of the form https://example/com/ccyy/mm?post_type=post_type This will use the date archive template, if present.