[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