Added RouteCollectorInterface extracted from FastRoute
Added abstract base class RouteCollector and simple implementation
GroupCountBasedFactory now expects a RouteCollectorInterface
Added CachedCollector and test
Updated RouterExtension with new services
Added SimpleCollectorTest
Removed CachedDispatcherFactory
Added test for CachedCollector
Added RouteCollectorTest
Added RouteCollectorInterface to phpunit exclude
Removed unnecessary use statements
Merge branch 'feature/router'