Add support for ros2 rosdep

package.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0"?>
-<package>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
   <name>ugv_sdk</name>
   <version>0.8.0</version>
   <description>Weston Robot Platform SDK</description>
@@ -13,7 +14,7 @@
   <url type="bugtracker">https://github.com/westonrobot/ugv_sdk/issues</url>
   <url type="repository">https://github.com/westonrobot/ugv_sdk</url>
 
-  <buildtool_depend>catkin</buildtool_depend> 
+  <buildtool_depend condition="$ROS_VERSION == 1">catkin</buildtool_depend> 
   <build_depend>asio</build_depend>
   <export></export>
 </package>