posix: Add sys/select.h bindings
posix: Add sys/select.h bindings

Signed-off-by: Matias De la Puente <eeb8c0a2f8584d56eb944d142d2db5278ce4c0c0@gmail.com>

Distrotech/vala,rvu95/vala,lovebug356/vala,frida/vala,GNOME/vala,flobrosch/vala-fixes,rvu95/vala,flobrosch/vala-fixes,playya/vala,themiwi/vala,tjol/vala-tjol,themiwi/vala,kamanashisroy/aroop,flobrosch/vala-fixes,lovebug356/vala,frida/vala,Distrotech/vala,severinh/vala,GNOME/vala,jessevdk/vala,phako/vala,playya/vala,severinh/vala,xdave/pvala,Jc2k/vala,tjol/vala-tjol,frida/vala,phako/vala,spidermonkdust/vala,frida/vala,jessevdk/vala,frida/vala,jessevdk/vala,spidermonkdust/vala,tjol/vala-tjol,spidermonkdust/vala,playya/vala,kamanashisroy/aroop,GNOME/vala,themiwi/vala,rvu95/vala,Jc2k/vala,severinh/vala,Distrotech/vala,kamanashisroy/aroop,GNOME/vala