Should be able to use an actual annotated tag for splitted repositories

[simensen]

Currently we simply push the most recent hash to refs/tags/${originalTag} but this may look weird and may be unexpected. We should be able to optionally create an annotated tag that can be pushed up instead. This would probably entail being able to specify a message template ( "Version %tag%", "Tagging %tag%" ) that can result in replacing %tag% with the tag in question.

--tag-message-template="Version %tag%"

... would result in something similar to the following for the tag "v1.0.0":

git tag -a -m "Version v1.0.0" 

[simensen]

Could also take the message from the original annotated tag. Unclear how to safely push the new tag up to the remote one at a time. Possibly git push [remote] [local-mangled-tag-name]:[actual-tag-name]?

if [ "tag" = "$(git cat-file -t ${TAG})" ]
then
    LOCAL_TAG=SOMETHING_NEW-annotated-tag-$TAG
    git cat-file $TAG | git tag -a -F - "$LOCAL_TAG" "$LOCAL_BRANCH"
else
    LOCAL_TAG="$LOCAL_BRANCH"
fi