apiserver/resources: Expose Backend
apiserver/resources: Expose Backend

This is more in line with other facades. Ultimately we would like all
facade to not deal with State directly and just expose the backend
interfaces they need.

alesstimec/juju,mjs/juju,marcmolla/juju,ericsnowcurrently/juju,marcmolla/juju,waigani/juju,alesstimec/juju,waigani/juju,waigani/juju,marcmolla/juju,mjs/juju,mjs/juju,mjs/juju,bac/juju,bac/juju,bac/juju,ericsnowcurrently/juju,alesstimec/juju,ericsnowcurrently/juju,alesstimec/juju,mjs/juju,ericsnowcurrently/juju,ericsnowcurrently/juju,marcmolla/juju,bac/juju,bac/juju,mjs/juju,waigani/juju,mjs/juju,marcmolla/juju,alesstimec/juju