[arch-general] gambas2 splitted package

[Laurent Carlier]

Attached is a source package for a gambas2 splitted package. The PKGBUILD is 
pretty huge due to some workaround, and to the fact that it produce several 
gambas2*  packages, following recommendations from 
http://www.gambasdoc.org/help/howto/package

A meta package is produced too, for migration facility from the monolitic 
package.

Of course, comments are welcome, as it's my first officially proposed PKGBUILD.

Regards,
Laurent Carlier