In some cases the license-identification header was missing,
so I added that as well. Replaced the remaining headers that
specifically identified "Versions 3.13.7 and higher".
Makefiles and the build system were deliberately excluded.
* Moved Readfile and macLib into tools/EPICS
* dbHost/Getopts was a duplicate
* Added (c) headers
* Build in the dbHost dir
* Switch build system to use Perl versions.