Bazel: Publish to local Maven repository and Google storage bucket

TEST PLAN:

  $ VERBOSE=1 tools/maven/mvn.sh install
  $ VERBOSE=1 tools/maven/mvn.sh deploy

Change-Id: I0b60f9e2137d8755f6e4ca32ff35ec5a5364f4a6

BUILD

diff --git a/BUILD b/BUILD
new file mode 100644
index 0000000..d2e59f3
--- /dev/null
+++ b/BUILD
@@ -0,0 +1 @@
+# This file is intended to be empty