updating alg_core and examples to move cfg file at the impl_algorithm layer

include/iri_base_driver/iri_base_driver_node.h

@@ -254,9 +254,9 @@ class IriBaseNodeDriver : public driver_base::DriverNode<Driver>
 
 template <class Driver>
 IriBaseNodeDriver<Driver>::IriBaseNodeDriver(ros::NodeHandle &nh) : 
-driver_base::DriverNode<Driver>(nh), 
-public_node_handle_(ros::this_node::getName()),
-loop_rate_(DEFAULT_RATE)
+  driver_base::DriverNode<Driver>(nh), 
+  public_node_handle_(ros::this_node::getName()),
+  loop_rate_(DEFAULT_RATE)
 {
   this->driver_.setPostOpenHook(boost::bind(&IriBaseNodeDriver::postOpenHook, this));