feat(slam): add cartographer_ros

cartographer/bazel/third_party/libpng.BUILD

@@ -0,0 +1,47 @@
+# Copyright 2018 The Cartographer Authors
+#
+# 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.
+
+# Description:
+#   libpng is the official PNG reference library.
+
+licenses(["notice"])  # BSD/MIT-like license
+
+cc_library(
+    name = "libpng",
+    srcs = [
+        "png.c",
+        "pngerror.c",
+        "pngget.c",
+        "pngmem.c",
+        "pngpread.c",
+        "pngread.c",
+        "pngrio.c",
+        "pngrtran.c",
+        "pngrutil.c",
+        "pngset.c",
+        "pngtrans.c",
+        "pngwio.c",
+        "pngwrite.c",
+        "pngwtran.c",
+        "pngwutil.c",
+    ],
+    hdrs = [
+        "png.h",
+        "pngconf.h",
+    ],
+    includes = ["."],
+    linkopts = ["-lm"],
+    visibility = ["//visibility:public"],
+    deps = ["@net_zlib_zlib//:zlib"],
+)