WebAccess: less restrictive auth argument washing
WebAccess: less restrictive auth argument washing

* In WebAccess Admin interface, removed too restrictive authorization
  argument washing, permitting all characters to be used in arguments
  in authorizations.  Useful e.g. when trying to restrict a collection
  with name containing special characters.  (closes: #9393)

inveniosoftware/invenio-access,tiborsimko/invenio-access,tiborsimko/invenio-access,inveniosoftware/invenio-access