Add 'ls' alias for 'faas-cli list' command
Add 'ls' alias for 'faas-cli list' command

Signed-off-by: Eric Stoekl <c868fdb6ebf54453af49164062f0c7f57f9b6c7f@gmail.com>

itscaro/faas-cli,itscaro/faas-cli,itscaro/faas-cli