[FEATURE] Automatically generate files if auto_gen_code is set to true

[g13013]

Is your feature request related to a problem? Please describe.
Right now, many commands complain about obsolete code which breaks the flow of dev, I want to propose introducing a new config attribute auto_gen_code inside the terramate block that tells Terramate to automatically generate code if obsolete.

Describe alternatives you've considered
A wrapper script or shell alias that runs terramate generate before terramate commands

[cwe1ss]

Ideally there would be an environment variable and/or CLI-flag for this as well. I would prefer to set this locally only, but not in my CI/CD workflow.

The CI/CD workflow should fail if someone did not generate the code. (We also check this via pre-commit etc, but still, I think it would be good if this were environment-specific)

[g13013]

Ideally there would be an environment variable and/or CLI-flag for this as well. I would prefer to set this locally only, but not in my CI/CD workflow.

Supporting a flag in the terramate.tm.hcl would be good as well to avoid repitition.

The CI/CD workflow should fail if someone did not generate the code. (We also check this via pre-commit etc, but still, I think it would be good if this were environment-specific)

I would argue that it should work in both environments. any terramate command, especially terramate run should auto-generate files if the config/variable/CLI-flag is set to auto as most run commands depend on the generated files. After that, it's up to the engineer to decide on whether to keep control on the files generation step or make it implicit.