Fix memory heap corruption issue

[VirxEC]

This appears to be an issue with ground_shot_is_valid in VirxERLU-CLib.

Here's the full traceback:

Windows fatal exception: code 0xc0000374

Thread 0x00008004 (most recent call first):
  File "G:\RLBotGUIX\Python37\lib\threading.py", line 296 in wait
  File "G:\RLBotGUIX\Python37\lib\multiprocessing\queues.py", line 224 in _feed
  File "G:\RLBotGUIX\Python37\lib\threading.py", line 870 in run
  File "G:\RLBotGUIX\Python37\lib\threading.py", line 926 in _bootstrap_inner
  File "G:\RLBotGUIX\Python37\lib\threading.py", line 890 in _bootstrap

Current thread 0x000031e0 (most recent call first):
  File "G:\RLBotGUIX\venv\lib\site-packages\rlbot\utils\rendering\rendering_manager.py", line 104 in end_rendering
  File "G:\RLBotGUIX\venv\lib\site-packages\rlbot\botmanager\bot_manager_struct.py", line 69 in call_agent
  File "G:\RLBotGUIX\venv\lib\site-packages\rlbot\botmanager\bot_manager.py", line 250 in perform_tick
  File "G:\RLBotGUIX\venv\lib\site-packages\rlbot\botmanager\bot_manager.py", line 206 in run
  File "G:\RLBotGUIX\venv\lib\site-packages\rlbot\setup_manager.py", line 617 in run_agent
  File "G:\RLBotGUIX\Python37\lib\multiprocessing\process.py", line 99 in run
  File "G:\RLBotGUIX\Python37\lib\multiprocessing\process.py", line 297 in _bootstrap
  File "G:\RLBotGUIX\Python37\lib\multiprocessing\spawn.py", line 118 in _main
  File "G:\RLBotGUIX\Python37\lib\multiprocessing\spawn.py", line 105 in spawn_main
  File "<string>", line 1 in <module>

I have yet to figure out if this is a problem with my C code or some problem with CPython's internal memory management.

Here's a crash dump that was generated with pythonw (but not python?)

EXCEPTION_RECORD:  (.exr -1)
ExceptionAddress: 00007ffb96b7dace (ucrtbase!abort+0x000000000000004e)
   ExceptionCode: c0000409 (Security check failure or stack buffer overrun)
  ExceptionFlags: 00000001
NumberParameters: 1
   Parameter[0]: 0000000000000007
Subcode: 0x7 FAST_FAIL_FATAL_APP_EXIT 

PROCESS_NAME:  pythonw.exe

ERROR_CODE: (NTSTATUS) 0xc0000409 - The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application.

EXCEPTION_CODE_STR:  c0000409

EXCEPTION_PARAMETER1:  0000000000000007

STACK_TEXT:  
000000d4`287ef660 00007ffb`2baf1bb7     : 00000295`00000003 00000000`00000003 00000000`ffffffff 00007ffb`2bc0a3d8 : ucrtbase!abort+0x4e
000000d4`287ef690 00007ffb`2baf17c3     : 000000d4`287ef9a0 000000d4`287ef800 00000000`00000000 00000000`00000000 : python37!Py_RestoreSignals+0x14b
000000d4`287ef6d0 00007ffb`2b9e94a9     : 000000d4`287ef9a0 00000000`00000000 00000295`edd52050 00000000`00000000 : python37!Py_FatalInitError+0x1f
000000d4`287ef700 00007ffb`2b9a09ce     : 000000d4`287ef9a0 00000295`edd52050 00000000`00000000 00000000`00000000 : python37!PyErr_NoMemory+0x2ad5d
000000d4`287ef930 00007ffb`2b9a09b6     : 0000ab32`10364489 00007ff7`28481e7e 00000000`00000000 00007ffb`96b29f66 : python37!Py_Main+0x6e
000000d4`287ef960 00007ff7`28481277     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : python37!Py_Main+0x56
000000d4`287efa10 00007ffb`97f07c24     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : pythonw+0x1277
000000d4`287efa50 00007ffb`98f8d4d1     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : kernel32!BaseThreadInitThunk+0x14
000000d4`287efa80 00000000`00000000     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x21


SYMBOL_NAME:  ucrtbase!abort+4e

MODULE_NAME: ucrtbase

IMAGE_NAME:  ucrtbase.dll

STACK_COMMAND:  ~0s ; .ecxr ; kb

FAILURE_BUCKET_ID:  FAIL_FAST_FATAL_APP_EXIT_c0000409_ucrtbase.dll!abort

Source code: https://pypi.org/project/VirxERLU-CLib/#files problem method gets defined on about line 1074 and is called method_ground_shot_is_viable

[VirxEC]

https://stackoverflow.com/questions/64957662/multithreading-cpython-memory-heap-corruption-issue

[VirxEC]

Thanks to https://stackoverflow.com/a/64960890/10930209, I've fixed this issue!