Add convert command to go from stack json to language of choice

[pierskarsenbarg]

Hello!

• Vote on this issue by adding a 👍 reaction
• If you want to implement this feature, comment to let us know (we'll work with you on design, scheduling, etc.)

Issue details

Given a stack JSON file created by pulumi stack export, it would be useful to be able to convert that into one of the languages we support.

It would be very useful if you've got an old stack and have "misplaced" the code that you used to create it.

Affected area/feature

[Frassle]

Note that nearly all the code to support this is probably already present from the import command which generates programs based on state.