New interface that allows the merging of scan's data

[ignotus]

Create a new form of store host's data that allow to merge information from different scans (from the same tool or different ones, e.g. Nmap and Zion). This can help us to avoid MDI [0] interface and create a new SDI [1] that support this data merging. I suggest the creating of a general host class that gather scan's information.

[0] http://library.gnome.org/devel/hig-book/stable/windows-primary.html.en#mdi
[1] http://library.gnome.org/devel/hig-book/stable/windows-primary.html.en#sdi