Suggestion: add ability of data persistence in mock factory

[omermorad]

Today, the common use of Mockingbird looks like this

MockFactory.create<User>(UserEntity, { count: 3 });

The data is often used for seeding a database or simply just to generate fixtures for integration tests.

I suggest adding the option to persist the data into a file, exactly like Jest is doing with Snapshot, for example:

MockFactory.create<User>(UserEntity, { count: 3 }).persist();

(can be also .snapshot(), needs to decide what's better)

The data has to be saved in a JSON file and needs to have a unique name - maybe the class/test file name. There is also another option - to pass a parameter to the persist() method with a unique slug:

MockFactory.create<User>(UserEntity, { count: 3 }).persist('simple-user-mock');