Update package_etw.bat so that it copies UIforETW*.exe to bin
Update package_etw.bat so that it copies UIforETW*.exe to bin

After running package_etw.bat it seems reasonable for the *local*
machine to be in a good state, with the bin directory containing
the latest binaries. Now this is the case.

modulexcite/UIforETW,mwinterb/UIforETW,MikeMarcin/UIforETW,u-engine/UIforETW,google/UIforETW,MikeMarcin/UIforETW,google/UIforETW,ariccio/UIforETW,ariccio/UIforETW,ariccio/UIforETW,OSVR/UIforETW,modulexcite/UIforETW,google/UIforETW,MikeMarcin/UIforETW,mwinterb/UIforETW,u-engine/UIforETW,ariccio/UIforETW,u-engine/UIforETW,modulexcite/UIforETW,mwinterb/UIforETW,OSVR/UIforETW,google/UIforETW,OSVR/UIforETW