Add query support for index

Signed-off-by: Christian Dupuis <cd@atomist.com>

query/enabled_skills_query.edn

@@ -0,0 +1,21 @@
+;; Copyright © 2022 Docker, Inc.
+;;
+;; Licensed under the Apache License, Version 2.0 (the "License");
+;; you may not use this file except in compliance with the License.
+;; You may obtain a copy of the License at
+;;
+;;     http://www.apache.org/licenses/LICENSE-2.0
+;;
+;; Unless required by applicable law or agreed to in writing, software
+;; distributed under the License is distributed on an "AS IS" BASIS,
+;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;; See the License for the specific language governing permissions and
+;; limitations under the License.
+
+[:find
+ (pull ?skill [:atomist.skill/namespace :atomist.skill/name])
+ :in $ $before-db % ?ctx
+ :where
+ [?skill :atomist.skill/id _]
+ [?skill :atomist.skill/state :enabled]
+ ]