package/libglew: bump version to 2.2.0

As noted on https://sourceforge.net/projects/glew/ the package moved to
github.com, update URLs.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
3 files changed