Bonus * -> std::shared_ptr<Bonus>
This cures the following problems:
1) Memory corruption at exit. Some Bonus-es were deleted twice (mods?).
2) Memory leaks. Some Bonuses were not deleted.
3) Reduce the number of "Orphaned child" messages.
Valgrind reports 0 leaked memory now and no invalid reads/writes.
* introduced new handler BonusTypeHandler
* config\bonusnames.json converted to common format and splitted info main and localizable parts
* hanlders initialization refactored
