Refactor move tests from ebean-core to ebean-test

ebean-test/src/test/java/org/tests/insert/OnlyIdEntity.java

@@ -0,0 +1,19 @@
+package org.tests.insert;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+public class OnlyIdEntity {
+
+  @Id
+  long id;
+
+  public long getId() {
+    return id;
+  }
+
+  public void setId(long id) {
+    this.id = id;
+  }
+}