Hibernate 5 Multitenancy tutorial (#1150)

* First commit for Hibernate 5 Multitenancy tutorial

* Changes to fix the code.

* Added hibernate begin transaction code.

* Changes to solve the multitenancy issue.

* Changes to integrate h2

* Changing configs to solve the error

* Changes to solve h2 error...

* Changes to fix H2 error.

* Cleaned POM.xml and changed entity name

* Changes table name to supplier

* Removed MySql Dep from pom.xml.

* Changes as per comment in the PR...

hibernate5/src/main/java/com/baeldung/hibernate/UnsupportedTenancyException.java

@@ -0,0 +1,8 @@
+package com.baeldung.hibernate;
+
+public class UnsupportedTenancyException extends Exception {
+    public UnsupportedTenancyException (String message) {
+        super(message);
+    }
+
+}