Update 'Jenkinsfile-stats'

Jenkinsfile-stats

@@ -1,5 +1,18 @@
 node {
+stage('Preparation') { 
+     properties([
+         parameters([
+             buildSelector(
+             defaultSelector: lastSuccessful(),
+             description: 'Which build to use for copying artifacts',
+             name: 'BUILD_SELECTOR')
+         ])
+     ])
+ }
  stage('checkout: Check out from version control') {
          checkout scm
  }
+ stage('Copy Artifacts') {
+
+ }
 }