Add bazel options to align with gerrit's

Change-Id: I6addd5fcaecb8c2508e1d5776ecfed8ae676b6ed
Signed-off-by: David Ostrovsky <david@ostrovsky.org>

.bazelrc

@@ -0,0 +1,8 @@
+build --repository_cache=~/.gerritcodereview/bazel-cache/repository
+build --experimental_strict_action_env
+build --action_env=PATH
+build --disk_cache=~/.gerritcodereview/bazel-cache/cas
+
+test --build_tests_only
+test --test_output=errors
+