Fixed amount of component types and/or count component types at compile time

[miguelmartin75]

It would be best if I removed the dependency of boost::dynamic_bitset, and instead had a pre-determined amount of component types. I'm not 100% sure how counting the types would be possible.

[miguelmartin75]

Boost.Preprocessor should be considered when implementing this feature. As this will allow us for not having to reconfigure the library and rebuild it; and it will more than likely have the added benefit of knowing what components to allocate and therefore, we could store all components of different types contiguously with ease.