add jjb-<cmd> jobs for validating/deploying Jenkins jobs

Thse jobs run the deploy/jjb.sh script on a Jenkins Slave that is
configured with an environment for working with the `oc` command.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

jjb-deploy.yaml

@@ -0,0 +1,18 @@
+---
+- job:
+    name: jjb-deploy
+    project-type: pipeline
+    sandbox: true
+    dsl: |
+      def GIT_REPO = 'http://github.com/ceph/ceph-csi'
+      def GIT_BRANCH = 'ci/centos'
+      node {
+        stage('checkout ci repository') {
+          git url: "${GIT_REPO}", branch: "${GIT_BRANCH}", changelog: false
+        }
+        stage('validation') {
+          sh './deploy/jjb.sh deploy'
+        }
+      }
+    triggers:
+    - github

jjb-validate.yaml

@@ -0,0 +1,22 @@
+---
+- job:
+    name: jjb-validate
+    project-type: pipeline
+    sandbox: true
+    dsl: |
+      def GIT_REPO = 'http://github.com/ceph/ceph-csi'
+      def GIT_BRANCH = 'ci/centos'
+      node {
+        stage('checkout ci repository') {
+          git url: "${GIT_REPO}", branch: "${GIT_BRANCH}", changelog: false
+        }
+        stage('validation') {
+          sh './deploy/jjb.sh validate'
+        }
+      }
+    triggers:
+      - github-pull-request:
+          admin-list:
+          - nixpanic
+          org-list:
+          - ceph