Feature request: Let batou return requested environment value in the commandline

[nichmoe]

The requested feature could look something like this:

% batou return dev component.variable_A
value_of_variable_A

You specify the environment and the variable. Batou return the value as a string, similar to the Jinja implementation.

Usecase 1:
Check for the value without having to look for defaults or definitions in the environments. This saves time and gives certainty.

Usecase 2:
This can be part of a script. Then you can much more easily define checks that are part of a deployment pipeline.