add db support for events

Author: MalteSchwitters

backend/src/main/java/org/eventplanner/config/DatabaseConfig.java

@@ -33,7 +33,7 @@ public DataSource dataSource() {
     public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
         LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
         em.setDataSource(dataSource());
-        em.setPackagesToScan("org.eventplanner.events.entities");
+        em.setPackagesToScan("org.eventplanner.events.adapter.jpa");
 
         HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
         em.setJpaVendorAdapter(vendorAdapter);