Adding PclZip Library

The PhpZip application is using several libraries for compression format. These libraries have their own lives and development speed, so independant packages will be created for these libraries (at least those of interest).
The first one is PclZip which support the zip compression format.
For a full description of PclZip look at the manual on PhpConcept web site (http://www.phpconcept.net/pclzip/index.en.php)