[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/string/wcsset.cpp

@@ -0,0 +1,29 @@
+//
+// wcsset.cpp
+//
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+// Defines _wcsset(), which sets all of the characters in a wide character
+// string to the given value.
+//
+#include <string.h>
+
+
+
+#if defined _M_X64 || defined _M_IX86 || defined _M_ARM || defined _M_ARM64
+    #pragma warning(disable:4163)
+    #pragma function(_wcsset)
+#endif
+
+
+
+extern "C" wchar_t* __cdecl _wcsset(
+	wchar_t* const string,
+	wchar_t  const value
+	)
+{
+    for (wchar_t* p = string; *p; ++p)
+        *p = value;
+
+    return string;
+}