HarmonyOS support for VAD. (#1561)

sherpa-onnx/csrc/silero-vad-model.h

@@ -11,6 +11,10 @@
 #include "android/asset_manager_jni.h"
 #endif
 
+#if __OHOS__
+#include "rawfile/raw_file_manager.h"
+#endif
+
 #include "sherpa-onnx/csrc/vad-model.h"
 
 namespace sherpa_onnx {
@@ -23,6 +27,10 @@ class SileroVadModel : public VadModel {
   SileroVadModel(AAssetManager *mgr, const VadModelConfig &config);
 #endif
 
+#if __OHOS__
+  SileroVadModel(NativeResourceManager *mgr, const VadModelConfig &config);
+#endif
+
   ~SileroVadModel() override;
 
   // reset the internal model states