bitbake: toaster: Add no search results page

bitbake: toaster: Add no search results page

Adding the no search results page to the built packages
(bpackage.html), variables (configvars.html), recipes
(recipes.html) and tasks (tasks.html) tables.

The change copies the code from the build.html template
into the other 4 templates. There is probably a smarter way
of doing this, though.

(Bitbake rev: 3feff77091b3926c10ca8f30890c9049633ccb66)

Signed-off-by: Belen Barros Pena <belen.barros.pena@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>