Imports of cli-test command

PathSynopsis
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/fatih/colorPackage color is an ANSI color package to output colorized or SGR defined output to the standard output.
osPackage os provides a platform-independent interface to operating system functionality.
os/execPackage exec runs external commands.