Expose extern zip file from js compiler jar. (#376)
Expose extern zip file from js compiler jar. (#376)

Add a Bazel rule for exposing zip file containing extern files used by the js compiler so tools depending on this repository can refer to them.
bazelbuild/rules_closure,gramic/rules_closure,gramic/rules_closure,gramic/rules_closure,bazelbuild/rules_closure,bazelbuild/rules_closure,bazelbuild/rules_closure,gramic/rules_closure