Changed root frame to odom (#86)

Signed-off-by: Piotr Jaroszek <[email protected]>

Gems/ROS2/Code/Source/Frame/ROS2FrameComponent.cpp

@@ -53,7 +53,7 @@ namespace ROS2
     const char* ROS2FrameComponent::GetGlobalFrameName()
     {
         // TODO - parametrize this (typically: "odom", "world" and sometimes "map")
-        return "world";
+        return "odom";
     }
 
     bool ROS2FrameComponent::IsTopLevel() const