Add --project and --branch parameters on the topic-changed hook

It is currently not possible to distinguish which change the hook
is called on if the same Change-Id is used on multiple changes on
different projects or branches.

Add --project and --branch parameters on the hook.

Bug: Issue 2243
Change-Id: I71240017a0ca60ba223435ecc4b6a7e875a72fc0
2 files changed