Adds package.xml to support Catkin.

Change-Id: I8ad4d36a8b036417604a54644e0bb70dd1615feb

package.xml

diff --git a/package.xml b/package.xml
new file mode 100644
index 0000000..33423f1
--- /dev/null
+++ b/package.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0"?>
+<!--
+  Copyright 2015 Google Inc. All rights reserved.
+  http://ceres-solver.org/
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+  * Neither the name of Google Inc. nor the names of its contributors may be
+    used to endorse or promote products derived from this software without
+    specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<package format="2">
+  <name>ceres-solver</name>
+  <version>1.11.0</version>
+  <description>A large scale non-linear optimization library.</description>
+  <maintainer email="ceres-solver@googlegroups.com">
+    The Ceres Solver Authors
+  </maintainer>
+  <license>New BSD</license>
+  <url type="website">http://ceres-solver.org/</url>
+
+  <buildtool_depend>catkin</buildtool_depend>
+
+  <depend>atlas</depend>
+  <depend>eigen</depend>
+  <depend>gfortran</depend>
+  <depend>libgflags-dev</depend>
+  <depend>libgoogle-glog-dev</depend>
+  <depend>suitesparse</depend>
+
+  <export>
+    <build_type>cmake</build_type>
+  </export>
+</package>