[ctl] Load available configurations in "cubicweb-ctl list"
Otherwise we rely on associated ctl plugins to be loaded which is arguably orthogonal to
configurations.
Latest changes --------------* table of `all latest changes`_Links below is providing useful RQL query example..._all latest changes: ../view?rql=Any+M%2CX+WHERE+X+modification_date+M+ORDERBY+M+DESC+LIMIT+30