Add Golang API for VAD (#708)

go-api-examples/vad/run.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+
+if [ ! -f ./silero_vad.onnx ]; then
+  curl -SL -O https://github.com/snakers4/silero-vad/blob/master/files/silero_vad.onnx
+fi
+
+go mod tidy
+go build
+./vad