Add a script to prepare a Bazel environment

Starts the migration of the prepare_bazel_test_env script which
utilizes Soong prebuilts to scaffold a Bazel environment that can be
used for executing tests.

Test: N/A
Change-Id: Ia6f88dfa7b85f9fe9225d9d162902117d660f3bd
diff --git a/experiments/prepare_bazel_test_env/BUILD.bazel b/experiments/prepare_bazel_test_env/BUILD.bazel
new file mode 100644
index 0000000..e307867
--- /dev/null
+++ b/experiments/prepare_bazel_test_env/BUILD.bazel
@@ -0,0 +1,19 @@
+# Copyright (C) 2021 The Android Open Source Project
+#
+# 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.
+
+py_binary(
+	name = "prepare_bazel_test_env",
+	srcs = glob(["*.py"]),
+	data = glob(["data/**/*"])
+)
diff --git a/experiments/prepare_bazel_test_env/README.md b/experiments/prepare_bazel_test_env/README.md
new file mode 100644
index 0000000..896a715
--- /dev/null
+++ b/experiments/prepare_bazel_test_env/README.md
@@ -0,0 +1,5 @@
+# Overview
+
+The `prepare_bazel_test_env` script is a proof-of-concept script
+to create a simulated Bazel environment within the Android source
+tree using targets build by the Soong build system.