Make Otter more Ottermatic

[zanechua]

So. Right now the major pain of Otter is having to declare all the OtterResources for each Eloquent Model that will be managed by Otter.

The idea behind this issue is to make Otter handle that for you also by introducing an otter:generate command.

This command will take in a model argument and the command will read the fillable attributes or the database attributes to populate the OtterResource file.

I'll need to declare a mapper to map database types to input types.