- Renamed cGirls to GirlManager and moved it to its own header/implementation files (together with GirlPredicate and cAbstractGirl)
- Renamed file Brothel.h to Brothel.hpp
- Moved globals extern declaration regarding Girl to Girl.hpp
- Updated includes across files accordingly

Signed-off-by: Jan Nemecek <Nemecek.Jan@seznam.cz>