Dump values.yaml from bundle

[lazovskiy]

Before proceeding

• I didn't find a similar issue

Problem

Using werf bundles for delivering applications can stumble with an inability to dump values.yaml included to bundle.
In most cases, you can't apply bundle to cluster without changing various settings in values.yaml file; hence you have to provide the end user with sample values.yaml or the manual with the options described.

Solution (if you have one)

Helm already has the option to dump values included in the chart using the helm show values command, so it would be nice to have one in werf for bundles.

Additional information

Thanks a lot!