Handle an invalid resource and return an empty GD resource

[GwendolenLynch]

As referenced bolt/filesystem#52 (comment)

Closes bolt/bolt#6677

[CarsonF]

I would rather throw an exception here, similar to createFromFile.
Side note: we could definitely update these two createFrom methods to accept an optional info. That would save having to create it again.

It's the logic in Creator::verifyInfo that needs to be updated. Instead of catching exception we need to check for false on isValid. We should tag FS as a feature release and then require that minor version here since we need that new method.

[GwendolenLynch]

I would rather throw an exception here, similar to createFromFile.

OK, that is me misunderstanding this:

We should make sure thumbs handles the invalid object correctly instead of relying on an exception to be thrown.

… as you not wanting to throw them here for the same reason … what a relief! Throwing the exception 👍 😄

I should be back online early-ish in your day time there, we'll sort the FS stuff and tag, then revisit this from there.

[GwendolenLynch]

OK, done and done.