Purpose: Base class for the GameManager and CommManager used for handling the worker thread starting and terminating procedures. Methods: BOOL SetPriority (int prio) - Sets the priority level of the invoked thread. void StartWorkerThread (LPVOID pvParam = 0) - Starts the worker thread. void EndWorkerThread (BOOL bWaitForTermination) - Ends the worker thread. Setting the bWaitForTermination to TRUE blocks until thread exits. UINT InvokeThreadEntry (LPVOID pParam) - Used as shell only, to invoke the thread. virtual UINT ThreadEntry (LPVOID pParam = 0) - Pure virtual function  - here goes the thread's main loop.