Add Jenkinsfile for sonar

Jenkinsfile

+node {
+  stage('SCM') {
+    checkout scm
+  }
+  stage('SonarQube Analysis') {
+    def mvn = tool 'Default Maven';
+    withSonarQubeEnv() {
+      sh "${mvn}/bin/mvn clean verify sonar:sonar -Dsonar.projectKey=benjamin.anthonio_qcm-patiques-metiers_31e2fba8-e805-4d6e-a585-f2bbee106cab -Dsonar.projectName='QCM Pratiques métiers'"
+    }
+  }
+}
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