Deploy www.espace-win.org on legacy web server

Summary:
Regular PHP site.

This commit takes care of the main PHP code.

Other things needed like TCL integration, software dependencies
will be committed later if needed.

Ref T205.

Test Plan: Browse https://www.espace-win.org

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T205

Differential Revision: https://devcentral.nasqueron.org/D1849