v2.0: Adjust Makefile to have files under 'Functions' copied when running

This version includes support for the installation of DEB packages. The same features and meta-data created when installing RPM files apply to DEB files too.

Currently the only caveat with DEB files is that there's no easy way to tell the license of a given package. Debian has only recently agreed on a specification for describing that information in a machine-parseable friendly format, but few packages out there use it.

Note that this version has been bumped straight from 1.0 to 2.0 due to a name change in the major script. It is no longer called InstallPackage-RPM but rather just ThirdPartyInstaller (as we may want to include support for further package formats down the road.)