Initial public release of puppet-ssh.

This is a useful helper module that I wrote. It's finally time for it to
see the light of day! It includes classes and types for easy root key
exchange / pairing. These types could be expanded with additional
functionality, but it's not needed at this time. This also includes
ssh::file support, which is very magic!
Allow this to work with ssh::file::hash duplicates.

This is necessary to avoid duplicates in ssh::file::push, and when the
same file is used for more than one source.
Allow safe duplication of multiple ssh::send types.

This occurs if multiple different hosts request ssh::send which each ask
for an ssh_authorized_key to be exported. Since only one is needed (and
it is exported to all other hosts) then it needs to be safely defined to
prevent duplicate definition errors.