Make the name of the Blueprint configurable

[barakalon]

Loving this extension!

This little modification makes the name of the Blueprint a parameter.

I want to have a separate swagger UI endpoint for different versions of the API, e.g. /v1/docs and /v2/docs.

Blueprint names must be unique across all blueprints registered with the application.

[barakalon]

@sveint Any chance this can get reviewed/released soon?
I'm hoping I don't have to create a fork.

[ghost]

@barakalon as a workaround you can change name of Bluenprint returned by get_swaggerui_blueprint method. Something like:

v1_api_blueprint = get_swaggerui_blueprint(
    SWAGGER_URL,  # Swagger UI static files will be mapped to '{SWAGGER_URL}/dist/'
    API_URL,
    config={  # Swagger UI config overrides
        'app_name': "Test application"
    }
)
v2_api_blueprint = get_swaggerui_blueprint(
...
)

v1_api_blueprint.name = "v1_api_ui"
v2_api_blueprint.name = "v2_api_ui"

[sveint]

Awful late reply, sorry about that. Merged now.