Add a fixed releaser (#6)

.bcr/config.yml

diff --git a/.bcr/config.yml b/.bcr/config.yml
new file mode 100644
index 0000000..4ddfef1
--- /dev/null
+++ b/.bcr/config.yml
@@ -0,0 +1,6 @@
+# See https://github.com/bazel-contrib/publish-to-bcr#a-note-on-release-automation
+# for guidance about whether to uncomment this section:
+#
+fixedReleaser:
+  login: meteorcloudy
+  email: pcloudy@google.com