General improvements:

- Added drafts for event flag emulation;
- Implemented memory locking/unlocking;
- Refactored common SC_Memory objects;
- Implemented VM (virtual memory) syscalls;
- Improved cellGameBootCheck;
- Added more dummy values to cellVideoOutGetDeviceInfo;
- Mapped functions sys_mmapper_allocate_memory and sys_mmapper_map_memory to sysPrxForUser;
- Mapped syscalls 341 and 342 (duplicates of 324 and 325) to sys_memory_container_create and sys_memory_container_destroy;

Improved PKG installation routine:
- Allow immediate game booting;
- Fixed and improved game folder path handling.