Coder: Helm chart and configuration

Change-Id: I43515c289001bf1407aee1f9734151a261a7808a
diff --git a/charts/coder/templates/rbac.yaml b/charts/coder/templates/rbac.yaml
new file mode 100644
index 0000000..07fb36d
--- /dev/null
+++ b/charts/coder/templates/rbac.yaml
@@ -0,0 +1 @@
+{{ include "libcoder.rbac.tpl" . }}