Add speaker identification APIs for node-addon-api (#874)

scripts/node-addon-api/lib/sherpa-onnx.js

@@ -4,6 +4,7 @@ const non_streaming_asr = require('./non-streaming-asr.js');
 const non_streaming_tts = require('./non-streaming-tts.js');
 const vad = require('./vad.js');
 const slid = require('./spoken-language-identification.js');
+const sid = require('./speaker-identification.js');
 
 module.exports = {
   OnlineRecognizer: streaming_asr.OnlineRecognizer,
@@ -15,4 +16,6 @@ module.exports = {
   Vad: vad.Vad,
   CircularBuffer: vad.CircularBuffer,
   SpokenLanguageIdentification: slid.SpokenLanguageIdentification,
+  SpeakerEmbeddingExtractor: sid.SpeakerEmbeddingExtractor,
+  SpeakerEmbeddingManager: sid.SpeakerEmbeddingManager,
 }