Fix bug where tpkg blew up if tpkg.yml has no files field
Fix bug where tpkg blew up if tpkg.yml has no files field

tpkg/client,tpkg/client,jaeheung90/tpkg-client,jaeheung90/tpkg-client,tpkg/pkgs,tpkg/server,tpkg/pkgs,jaeheung90/tpkg-client,tpkg/client,tpkg/server,tpkg/pkgs,tpkg/server