* nfc/nfp: Implement ISystemManager and ISystem
This PR add permission levels for `nfc` and `nfp` services:
- `nfc`: `CreateUserInterface` and `CreateSystemInterface` are implemented.
- `INfc`: `Initialize` and `IsNfcEnabled` calls are stubbed.
- `nfp`: `CreateDebugInterface` and `CreateSystemInterface` are implemented.
- `INfp`: `GetRegisterInfo2` for `IDebug` and `ISystem` are implemented.
* Addresses gdkchan feedback
* Refactoring HOS folder structure
Refactoring HOS folder structure:
- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close#766 and #753).
* Remove Types namespaces
