Add jni bindings

Summary: Add jni bindings for csslayout. First step in many of removing LayoutEngine.java and performing all layout in native.

Reviewed By: lucasr

Differential Revision: D3648793

fbshipit-source-id: d0e696e196fa7c63109c9117a65645ca3d6c9c00

lib/soloader/BUCK

@@ -0,0 +1,20 @@
+# Copyright (c) 2014-present, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree. An additional grant
+# of patent rights can be found in the PATENTS file in the same directory.
+
+include_defs('//CSSLAYOUT_DEFS')
+
+android_prebuilt_aar(
+    name = 'soloader',
+    aar = ':soloader-binary-aar',
+    visibility = [CSSLAYOUT_ROOT],
+)
+
+remote_file(
+    name = 'soloader-binary-aar',
+    url = 'mvn:com.facebook.soloader:soloader:aar:0.1.0',
+    sha1 = '918573465c94c6bc9bad48ef259f1e0cd6543c1b',
+)