[+] AuMemmem (bc it was copy/pasted twice around the two different codebases and MSVC doesnt have a native memmem routine)

Include/auROXTL/auMemoryUtils.hpp

@@ -45,3 +45,43 @@ static auline void *AuMemmove(void *dest, const void *src, size_t n)
 {
     return AURORA_RUNTIME_MEMMOVE(dest, src, n);
 }
+
+static auline void *AuMemmem(const void *haystack, size_t haystackLen,
+                             const void *const needle, const size_t needleLen)
+{
+#if defined(AURORA_IS_LINUX_DERIVED)
+    return ::memmem(haystack, heystackLen, needle, needleLen);
+#else
+    if (!haystack)
+    {
+        return {};
+    }
+
+    if (!haystackLen)
+    {
+        return {};
+    }
+
+    if (!needle)
+    {
+        return {};
+    }
+
+    if (!needleLen)
+    {
+        return {};
+    }
+
+    for (const char *h = (const char *)haystack;
+         haystackLen >= needleLen;
+         ++h, --haystackLen)
+    {
+        if (!AuMemcmp(h, needle, needleLen))
+        {
+            return (void *)h;
+        }
+    }
+
+    return {};
+#endif
+}