move common materials inside macro

Author: cjue

kuka_kr6_support/urdf/kr6_r1820_macro.xacro

@@ -1,9 +1,8 @@
 <?xml version="1.0"?>
 <robot xmlns:xacro="http://wiki.ros.org/xacro">
-  <xacro:include filename="$(find kuka_resources)/urdf/common_constants.xacro"/>
-  <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
 
   <xacro:macro name="kuka_kr6_r1820" params="prefix">
+    <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
     <link name="${prefix}base_link">
       <visual>
         <origin xyz="0 0 0" rpy="0 0 0" />

kuka_kr6_support/urdf/kr6r700sixx_macro.xacro

@@ -1,9 +1,8 @@
 <?xml version="1.0"?>
 <robot xmlns:xacro="http://wiki.ros.org/xacro">
-  <xacro:include filename="$(find kuka_resources)/urdf/common_constants.xacro"/>
-  <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
 
   <xacro:macro name="kuka_kr6r700sixx" params="prefix">
+    <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
     <link name="${prefix}base_link">
       <visual>
         <origin xyz="0 0 0" rpy="0 0 0" />

kuka_kr6_support/urdf/kr6r900sixx_macro.xacro

@@ -1,9 +1,8 @@
 <?xml version="1.0"?>
 <robot xmlns:xacro="http://wiki.ros.org/xacro">
-  <xacro:include filename="$(find kuka_resources)/urdf/common_constants.xacro"/>
-  <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
 
   <xacro:macro name="kuka_kr6r900sixx" params="prefix">
+    <xacro:include filename="$(find kuka_resources)/urdf/common_materials.xacro"/>
     <link name="${prefix}base_link">
       <visual>
         <origin xyz="0 0 0" rpy="0 0 0"/>