examples.mk: quiet vcproj script exec by default
examples.mk: quiet vcproj script exec by default

the full command line can be seen with V=1 as with the other gen*
scripts

Change-Id: Id045b57e0f9af17d82d79201bbc1241b25a2b821

liqianggao/libvpx,liqianggao/libvpx,Topopiccione/libvpx,smarter/aom,felipebetancur/libvpx,shacklettbp/aom,VTCSecureLLC/libvpx,luctrudeau/aom,ShiftMediaProject/libvpx,zofuthan/libvpx,ittiamvpx/libvpx-1,openpeer/libvpx_new,luctrudeau/aom,shyamalschandra/libvpx,mwgoldsmith/libvpx,mwgoldsmith/libvpx,mwgoldsmith/vpx,mbebenita/aom,Topopiccione/libvpx,mbebenita/aom,Topopiccione/libvpx,mbebenita/aom,zofuthan/libvpx,openpeer/libvpx_new,openpeer/libvpx_new,ittiamvpx/libvpx-1,thdav/aom,thdav/aom,shyamalschandra/libvpx,ittiamvpx/libvpx-1,thdav/aom,shyamalschandra/libvpx,luctrudeau/aom,jmvalin/aom,liqianggao/libvpx,mwgoldsmith/vpx,VTCSecureLLC/libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,mbebenita/aom,openpeer/libvpx_new,openpeer/libvpx_new,ShiftMediaProject/libvpx,zofuthan/libvpx,mbebenita/aom,felipebetancur/libvpx,VTCSecureLLC/libvpx,mwgoldsmith/vpx,running770/libvpx,zofuthan/libvpx,webmproject/libvpx,luctrudeau/aom,mwgoldsmith/vpx,thdav/aom,ShiftMediaProject/libvpx,VTCSecureLLC/libvpx,openpeer/libvpx_new,smarter/aom,shacklettbp/aom,shacklettbp/aom,liqianggao/libvpx,felipebetancur/libvpx,shacklettbp/aom,mbebenita/aom,ShiftMediaProject/libvpx,shyamalschandra/libvpx,ShiftMediaProject/libvpx,smarter/aom,liqianggao/libvpx,Topopiccione/libvpx,running770/libvpx,jmvalin/aom,ittiamvpx/libvpx-1,jmvalin/aom,liqianggao/libvpx,Topopiccione/libvpx,Topopiccione/libvpx,zofuthan/libvpx,mwgoldsmith/libvpx,felipebetancur/libvpx,VTCSecureLLC/libvpx,thdav/aom,VTCSecureLLC/libvpx,thdav/aom,running770/libvpx,ittiamvpx/libvpx-1,mwgoldsmith/libvpx,luctrudeau/aom,felipebetancur/libvpx,running770/libvpx,zofuthan/libvpx,webmproject/libvpx,GrokImageCompression/aom,jmvalin/aom,mbebenita/aom,GrokImageCompression/aom,mwgoldsmith/vpx,webmproject/libvpx,felipebetancur/libvpx,mwgoldsmith/libvpx,jmvalin/aom,webmproject/libvpx,mbebenita/aom,GrokImageCompression/aom,shyamalschandra/libvpx,jmvalin/aom,luctrudeau/aom,smarter/aom,ittiamvpx/libvpx-1,shyamalschandra/libvpx,mbebenita/aom,running770/libvpx,smarter/aom,GrokImageCompression/aom,GrokImageCompression/aom,webmproject/libvpx,running770/libvpx,smarter/aom,shacklettbp/aom,webmproject/libvpx,mwgoldsmith/vpx,shacklettbp/aom