Adding support of several environments
Adding support of several environments

Now setup_env.sh can be executed for specific environment.
For example,

    # setup_env.sh --env 3

Mirantis/mos-tempest-runner,avlasov-mos-de/mos-tempest-runner,obutenko/mos-tempest-runner,obutenko/mos-tempest-runner,avlasov-mos-de/mos-tempest-runner,Mirantis/mos-tempest-runner