moving jmh into libraries module (#1996)

* moving jmh into libraries module

* refactoring jmh

* Update pom.xml

libraries/src/main/java/com/baeldung/jmh/BenchMark.java

@@ -0,0 +1,12 @@
+package com.baeldung.jmh;
+
+import org.openjdk.jmh.annotations.Benchmark;
+
+public class BenchMark {
+
+    @Benchmark
+    public void init() {
+
+    }
+
+}

libraries/src/main/java/com/baeldung/jmh/JmhDemo.java

@@ -0,0 +1,14 @@
+package com.baeldung.jmh;
+
+import java.io.IOException;
+
+import org.openjdk.jmh.Main;
+import org.openjdk.jmh.runner.RunnerException;
+
+public class JmhDemo {
+
+    public static void main(String[] args) throws RunnerException, IOException {
+	  Main.main(args);
+    }
+
+}