chore: import upstream snapshot with attribution

runtime/onnxruntime/src/alignedmem.cpp

@@ -0,0 +1,21 @@
+#include "precomp.h"
+
+namespace funasr {
+void *AlignedMalloc(size_t alignment, size_t required_bytes)
+{
+    void *p1;  // original block
+    void **p2; // aligned block
+    int offset = alignment - 1 + sizeof(void *);
+    if ((p1 = (void *)malloc(required_bytes + offset)) == nullptr) {
+        return nullptr;
+    }
+    p2 = (void **)(((size_t)(p1) + offset) & ~(alignment - 1));
+    p2[-1] = p1;
+    return p2;
+}
+
+void AlignedFree(void *p)
+{
+    free(((void **)p)[-1]);
+}
+} // namespace funasr