Bearer native Capy demos

The demo area now uses Capy routes and a shared page component.

• call_file.capy
• call_file_funcs.capy
• collections.capy
• components/card.capy
• components/markdown/code_block.capy
• components/markdown/warning.capy
• components.capy
• cookie.capy
• dvalue.capy
• file_append.capy
• fileio.capy
• header.capy
• json.capy
• markdown.capy
• memcached.capy
• mysql.capy
• once-init.capy
• parse_time.capy
• post-multipart.capy
• post.capy
• preprocessor-comments.capy
• random.capy
• regex.capy
• script.capy
• session.capy
• sharedunit.capy
• shell.capy
• sqlite.capy
• str_replace.capy
• string.capy
• task.capy
• test2/working-dir-test.capy
• unit-browser.capy
• unit-info.capy
• uri.capy
• utf8.capy
• websockets.ws.capy
• working-dir.capy
• xml.capy
• yaml.capy
• zip.capy