No way to return `nextCursor` using list_resources decorator

[rbehal]

• When using the list_resources decorator, there is no way to return the nextCursor if your resources are paginated, as the decorator relies on just a list of Resource being returned
• Solution: Make a decorator list_paginated_resources that returns a dict with 'resources' and 'nextCursor' or even just the ListResourceResult object itself

Let me know your thoughts on the above and I'm happy to raise a PR with it

[ihrpr]

#745