glpi: #Refs 1996 improve computer list summary screen

Improve performance by removing costless group_by
Add fields
displayed fields are customizable in glpi.ini
glpi: Refs #1996 glpi inventory screen

Here is a preview to be tested.
New glpi inventory screen
New inventory tabs for glpi:
  * Summary
  * Hardware
  * Disk volumes
  * Network
  * Software
  * Administration
  * Historic
pkgs: Refs #1937 implements xmlrpc methods
pkgs: Refs #1937: include getPackage.py lib

getPackage.py is a lib who Try to suggest a unattended command for given
files
dyngroup: Fixes some tracebacks in profiles

Fixing tracebacks where you edit or delete a profile
Merge branch '1955-imaging-on-group-for-master' into master-mmc
Merge branch '1996-glpi-inventory-for-master' into master-mmc
glpi: fix some traceback when creating profiles