Show the config name as well as the "env" name

[chatch]

If we hook up 2 configs to 1 env then both return the same value for "emop show_env". This is the value of the ENV variables defined in the config file.

So we need another command to show the config file name.

eg. I have emlite.mgf.env AND emlite.mgf.axel.env.

For both emop show_env => 'mgf'.

We can see which config by ls -l ~/.simt/emlite.env and see what the sym link points to. But it feels like we ought to have another new command or a new merged command like emop status or emop info which shows, config, env and some other info ...

[chatch]

@damonrand low priority one but ran into this today.