added is_named_route method

[josephmancuso]

This adds a request.is_named_route() method that can be used like this:

# Request: /dashboard/user/edit/1
# Named: dashboard.edit
# Route url looks like: /dashboard/user/edit/@id

def show(self, request: Request):
    request.is_named_route('dashboard.edit', {'id': 1})

This method looks at the current path with the params passed and determines if it is a named route

[coveralls]

Coverage decreased (-0.04%) to 91.089% when pulling 9fdd976 on add-is-named-route into e845591 on master.

[coveralls]

Coverage decreased (-0.04%) to 91.089% when pulling 9fdd976 on add-is-named-route into e845591 on master.

[coveralls]

Coverage decreased (-0.04%) to 91.256% when pulling 8747843 on add-is-named-route into f7ca044 on master.