Add devspace print to debug patches

[shaunc]

Is your feature request related to a problem?

Debugging a series of patches seems unnecessarily cumbersome.

Which solution do you suggest?

A new cli command, devspace print, which prints the configuration for the current or given profile after all patching and variable substitution. Optionally, could merge configuration from dependencies.

Which alternative solutions exist?

Figuring out what you did wrong by staring at your code & the error messages.

Additional context

/kind feature

[FabianKramm]

@shaunc thanks for opening this issue! You can see the patched configuration in the UI under config, but yes we could also think about an additional command that just prints the loaded configuration.

[shaunc]

Ah -- forgot about it in the UI. I found this feature helpful in serverless. I don't know if the UI even comes up if you have made a big enough blunder? :) But print could just deal with substitution so could be quite robust even if you aren't making sense.

[shaunc]

(Could eventually be combine with other config management... lint? diff?)

[FabianKramm]

@shaunc yes sounds good, I think we can do this

[jerlam06]

The print command was implemented!

[shaunc]

Thanks!