added Jenkinsfile for jenkins build config

Jenkinsfile

@@ -0,0 +1,18 @@
+#!/usr/bin/env groovy
+
+parallel 'centos7': {
+    node('centos7') {
+	stage "Checkout Centos 7"
+        checkout scm
+
+	stage "Build Centos 7"
+        sh 'make -f make-linux.mk'
+    }
+}, 'android-ndk': {
+    node('android-ndk') {
+	stage "Checkout Android NDK"
+        checkout scm
+	stage "Build Android NDK"
+        sh '/android/android-ndk-r13/ndk-build -C $WORKSPACE/java ZT1=$WORKSPACE'
+    }
+}