export a unicode font may crash because chunks out of range...

set MemoryPoolDynamicStatic::MAX_CHUNKS to 65536

core/os/memory_pool_dynamic_static.h

@@ -38,7 +38,7 @@ class MemoryPoolDynamicStatic : public MemoryPoolDynamic {
 	_THREAD_SAFE_CLASS_
 
 	enum {
-		MAX_CHUNKS=16384
+		MAX_CHUNKS=65536
 	};