Generic API call

General helper for handling the brickset API.

rebrickable_api(where, api_key = rebrickable_key(),
  default_args = list(), ..., follow_next = TRUE)

Arguments

where	API endpoint
api_key	API key (pulled from .rebrickable_key if it exists)
default_args	default API args
...	Additional arguments to the API
follow_next	If response contains a 'next' argument, should it be followed?