Add unix build script (cherry picked from commit b3e87aca4ea62ca15ac75384f4b8076f094c066c)
Add unix build script
(cherry picked from commit b3e87aca4ea62ca15ac75384f4b8076f094c066c)

dreamrain21/Portable.Licensing,dreamrain21/Portable.Licensing,dnauck/Portable.Licensing,dnauck/Portable.Licensing