linux: add DirEntType for the d_type extension of struct dirent
linux: add DirEntType for the d_type extension of struct dirent

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