[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT

sdk/lib/ucrt/misc/seterrm.cpp

@@ -0,0 +1,39 @@
+/***
+*seterrm.c - Set mode for handling critical errors
+*
+*       Copyright (c) Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*       Defines signal() and raise().
+*
+*******************************************************************************/
+
+#include <corecrt_internal.h>
+#include <stdlib.h>
+
+/***
+*void _seterrormode(mode) - set the critical error mode
+*
+*Purpose:
+*
+*Entry:
+*   int mode - error mode:
+*
+*               0 means system displays a prompt asking user how to
+*               respond to the error. Choices differ depending on the
+*               error but may include Abort, Retry, Ignore, and Fail.
+*
+*               1 means the call system call causing the error will fail
+*               and return an error indicating the cause.
+*
+*Exit:
+*   none
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+extern "C" void __cdecl _seterrormode(int const mode)
+{
+    SetErrorMode(mode);
+}