[Gambas-user] Installer

[Fabien Bodard]

in fact the idea will be to make a Gambas apps self planet.

Each application have a list of needed libs, and versions of it.

if one app have a more recent lib it replace the older and if not exist, add it.

if a lib is not used anymore by all the installed apps it is removed

this job is done by the remover application that read all the
application liblist make a fullneeded list and compare to the real
installed libs in the folder.

More simple it is better it is