Buildkite bazel config (#620)

* testing buildkite config for bazel with remote cache on gcp

* Remove remote caching, it's going really slow for some reason with golib

.buildkite-bazelrc

@@ -0,0 +1,10 @@
+startup --host_jvm_args=-Xmx500m --host_jvm_args=-Xms500m
+
+build --local_resources=1536,0.5,1
+build --spawn_strategy=standalone --genrule_strategy=standalone
+build --noshow_progress
+build --verbose_failures
+build --test_output=errors
+build --flaky_test_attempts=5
+build --features=race
+test --test_strategy=standalone