Add Lint build stage

Jenkinsfile

@@ -4,12 +4,16 @@ pipeline {
         stage('setup') {
             steps {
                 sh 'npm install'
-                sh 'set PATH=$PATH:$(pwd)/node_modules/.bin'
             }
         }
         stage('build') {
             steps {
-                sh 'ng build --prod'
+                sh 'node_modules/.bin/ng build --prod'
+            }
+        }
+        stage('lint') {
+            steps {
+                sh 'node_modules/.bin/ng lint'
             }
         }
     }