What's new:
1. Fix the problem that the background music replayed after stopping is repeated.
2. Fixed an issue where background music was played briefly after the player died.

Game engine updates:
1. Add an interface to stop all audio in the audio module.
2. The map module removes the return value of the check map block interface.
3. The map module removes the return value of the updated map interface.
4. Item module removes component collection, name check when adding component.
5. Remove the event detection interface of the drawing module.
6. The draw module removes static variables used to mark deaths.
7. Separate the interface calls of the two map modules in the drawing loop.
8. The variable of the total number of display units recorded in the drawing module is decomposed into the map loading interface.
9. The draw module removes the internal coordinate base class pointer member.
10. Map module removed two coordinate number acquisition interfaces.
11. Draw the interface with higher switching efficiency in the initialization part of the module.
12. Code Collation.
13. Random module random engine variables are moved into static members.
14. The random module unifies the way to obtain random seeds.
15. Add null pointer check to the interface of the map module to detect whether the map data exists.
16. Add memory debugging function to the enclosure and use macro control switches.
17. Event module observer pattern related definitions moved into the header file.
18. The main function adds observer mode test.
19. The three variables of the item module about the moving distance are moved into the item class for management.
20. Multiple interfaces of the map module add operant object parameters.
21. Item module player data class changed to struct and removed the three functions that get variables.
22. The map module removes the interface to get the edge triggered by the last move.
23. The input module adds an enumeration of the direction of key movement.
24. Input module key observer class optimization improvement.
25. The input module added the test of key observer mode.
26. The input detection event of the input module is added to a private member by the observer variable.
27. The coordinate template class increases the overload of constant addition and subtraction.
28. Add pointer operator overload to coordinate template.
29. The input module movement function is implemented in observer mode.
30. The input module removes the key observer class to enable the disable function and the key number acquisition function.
31. Added the audio event observer class to the audio module.
32. The functions of the master operands class are merged into the item base class.