add sync option for asset folders to make it possible to preserve the "Default asset folder" setting of components when used with synchronizing components function of the CLI

[Slackman2015]

The feature would affect: (check one with "x")

• app.storyblok.com (CMS - Interface)
• api.storyblok.com (CMS - Content Delivery API)
• mapi.storyblok.com (CMS - Management API)
• capi.storyblok.com (Commerce - API)
• Commerce - Interface
• CLI

Is your feature request related to a problem? Please describe.
When working with the CLI it is possible to copy certain parts of a space to another space. So it is possible to copy the schema configuration from one space to another one but the configuration of the "Default asset folder" won't be copied because it isn't possible yet to copy them over yet.

Describe the solution you'd like
It would be helpful to be able to create the same asset folder structure in a target space like in the original space and to have the "Default asset folder" copies as well when using both together.

[max-g]

We have the following issue related to this:

We configured an asset field in a component with a default folder.
We use the push / pull component feature of the cli to push the component to a new space.
We get an error in the admin UI when clicking the asset field because the default folder (which seems to be related via it's numerical id) doesn't exists in the space which was targeted by the push-component.

(sorry for notification, commented on the other issue which was mentionning assets folder before finding this one)