lib: Combine bootstrap select into bootstrap and patternfly files

You need to reinstall cockpit after this change.

Signed-off-by: Stef Walter <stefw@redhat.com>
 * Fixed the combined files
 * Rename bootstrap file to include 'select' in name
 * Bump the name of patternfly file, no version yet
shell: Added patternfly styled dropdown menus

Fixes #687
Closes #780
Reviewed-by: Stef Walter <stefw@redhat.com>