Configure the GameStartupSetup and Configuration classes to instead add against a collection to be then registered at the end

## Description:
Currently the services are registered directl;y after they are created, this is creating multiple areas and points where the service registration is occuring in multiple points in the code. Instead to streamline the different points of registration, the services will be added against a collection before being registered in a single point after the configuration classes have been run.

** Issues **
- This approach would mean that initialisation of the objects will need to be coordinated. (This may add extra overhead). The current approach requires services to be registered then used directly afterwards instead of after its usage.