GIT-2045: enable versioning and strict slash on BlueprintGroup (#2047)

* GIT-2045: enable versioning and strict slash on BlueprintGroup

* GIT-2045: convert named tuple into typed format + unit tests

* GIT-2045: add example code for versioned bpg

* GIT-2045: None value for strict slashes check

* GIT-2045: refactor handler types and add benchmark for urlparse

* GIT-2045: reduce urlparse benchmark iterations

* GIT-2045: add unit test and url merge behavior

* GIT-2045: cleanup example code and remove print

* GIT-2045: add test for slash duplication avoidence

* GIT-2045: fix issue with tailing / getting appended

* GIT-2045: use Optional instead of Union for Typing

* GIT-2045: use string for version arg

* GIT-2045: combine optional with union

sanic/app.py

@@ -40,7 +40,7 @@ from sanic.exceptions import (
     ServerError,
     URLBuildError,
 )
-from sanic.handlers import ErrorHandler, ListenerType, MiddlewareType
+from sanic.handlers import ErrorHandler
 from sanic.log import LOGGING_CONFIG_DEFAULTS, error_logger, logger
 from sanic.mixins.listeners import ListenerEvent
 from sanic.models.futures import (
@@ -50,6 +50,7 @@ from sanic.models.futures import (
     FutureRoute,
     FutureStatic,
 )
+from sanic.models.handler_types import ListenerType, MiddlewareType
 from sanic.request import Request
 from sanic.response import BaseHTTPResponse, HTTPResponse
 from sanic.router import Router