add psiphon_install.sh, code should be improved
add psiphon_install.sh, code should be improved

0xPoly/ooni-probe,juga0/ooni-probe,juga0/ooni-probe,0xPoly/ooni-probe,juga0/ooni-probe,0xPoly/ooni-probe,juga0/ooni-probe,0xPoly/ooni-probe