* pctl: refactoring IParentalControlServiceFactory and IParentalControlService call
Our previous implementation was totally guessed. Now it's implemented according to RE, even if it's stubbed because we will not support Parental Control for now.
* unknownFlag > permissionFlag
* 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