Add output for arbitrary crowdin CLI commands

[r-chumachenko]

Is your feature request related to a problem? Please describe.
In our flow we need to read Crowd In branches to decide on the next steps. For it, we are using with.command: 'branch list'. Yet I cannot get output of command in the following steps.

Describe the solution you'd like
Extend outputs of action with extra field command_output so that users can handle output.

Describe alternatives you've considered
As blunt as it sounds I've tried adding output redirection to the file like this: with.command: 'branch list > out.txt' or command_args: '> out.txt'. Which obviously fails.

Additional context
I am trying to achieve something similar to native Crowd In + GH integration: pull every branch on Crowd In into respective localization branch in git.

[andrii-bodnar]

I like the idea! We should probably combine it with the --plain parameter to make the output more readable for machine and easier to process.