refractor bootstrap class name to sessionfactory and ass builder design pattern

Author: Chamal-Peiris

src/main/java/lk/ijse/dep8/orm/annotations/Bootstrap.java

@@ -0,0 +1,25 @@
+package lk.ijse.dep8.orm.annotations;
+
+import java.sql.Connection;
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class DepSessionFactory {
+  private List<Class<?>> entityClassList=new ArrayList<>();
+  private Connection connection;
+
+  public DepSessionFactory addAnnotatedClass(Class<?> entityClass){
+      if(entityClass.getDeclaredAnnotations(Entity.class)==null){
+          throw new RuntimeException("Invalid Entity class");
+      }
+      entityClassList.add(entityClassClass);
+    return this;
+  }
+  public DepSessionFactory setConnection(Connection connection){
+   this.connection=connection;
+   return this;
+  }
+
+
+}