Include resources directory in google3 sync.

Also other minor improvements in sync scripts.

In BUILD.public, include all files under resources as data dependencies for DM. Omit newly failing DM tests and add newly passing DM tests.

Adds the OpenClipart "license" to LICENSE per comment in google3 CL 100158380.

Corresponding google3 CL is 105602927.

BUG=skia:

Review URL: https://codereview.chromium.org/1406283002
diff --git a/BUILD.public b/BUILD.public
index 322310a..96950cc 100644
--- a/BUILD.public
+++ b/BUILD.public
@@ -273,13 +273,12 @@
         "--nogpu",
         "--verbose",
         # TODO(mtklein): maybe investigate why these fail?
-        "--match ~FontMgr ~Gif ~Scalar ~Canvas ~Codec_stripes ~Stream ~skps",
-        # TODO(benjaminwagner): dm can't find resources when running on TAP.
+        "--match ~FontMgr ~Scalar ~Canvas ~Codec_stripes ~Codec_Dimensions ~Codec ~Stream ~skps",
         "--resourcePath %s/resources" % BASE_DIR,
         "--images %s/resources" % BASE_DIR,
     ],
     copts = COPTS,
-    data = glob(["resources/*"]),
+    data = glob(["resources/**/*"]),
     defines = DEFINES,
     includes = DM_INCLUDES,
     deps = DM_EXTERNAL_DEPS + [