Add a package.xml file so one can use this pacakge as a dependency di…

…rectly.

package.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+<package format="3">
+  <name>jrl-cmakemodules</name>
+  <version>0.0.0</version>
+  <description>CMake utility toolbox</description>
+
+  <maintainer email="[email protected]">Justin Carpentier</maintainer>
+  <maintainer email="[email protected]">Guilhem Saurel</maintainer>
+  <maintainer email="[email protected]">Pierre Gergondet</maintainer>
+
+
+  <license>BSD-2</license>
+  <url type="website">https://github.com/jrl-umi3218/jrl-cmakemodules</url>
+
+  <buildtool_depend>cmake</buildtool_depend>
+
+  <!-- The export tag contains other, unspecified, tags -->
+  <export>
+    <!-- Other tools can request additional information be placed here -->
+    <build_type>cmake</build_type>
+  </export>
+</package>