FindIgnURDFDOM cmake module

cmake/FindIgnURDFDOM.cmake

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+#
+# Copyright (C) 2021 Open Source Robotics Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+include(IgnPkgConfig)
+if (IgnURDFDOM_FIND_VERSION)
+  set(signature "urdfdom >= ${IgnURDFDOM_FIND_VERSION}")
+else()
+  set(signature "urdfdom")
+endif()
+ign_pkg_check_modules(IgnURDFDOM "${signature}")