GIR writer: Always include GLib and GObject
GIR writer: Always include GLib and GObject

themiwi/vala,GNOME/vala,tjol/vala-tjol,GNOME/vala,phako/vala,themiwi/vala,frida/vala,severinh/vala,tjol/vala-tjol,severinh/vala,flobrosch/vala-fixes,severinh/vala,playya/vala,frida/vala,playya/vala,rvu95/vala,jessevdk/vala,frida/vala,playya/vala,Distrotech/vala,Distrotech/vala,kamanashisroy/aroop,frida/vala,spidermonkdust/vala,themiwi/vala,rvu95/vala,jessevdk/vala,flobrosch/vala-fixes,Jc2k/vala,frida/vala,GNOME/vala,GNOME/vala,spidermonkdust/vala,flobrosch/vala-fixes,phako/vala,xdave/pvala,Jc2k/vala,spidermonkdust/vala,kamanashisroy/aroop,Distrotech/vala,jessevdk/vala,tjol/vala-tjol,kamanashisroy/aroop,rvu95/vala