Add Kotlin and Java API for FireRedAsr AED model (#1870)

sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineFireRedAsrModelConfig.java

@@ -0,0 +1,42 @@
+package com.k2fsa.sherpa.onnx;
+
+public class OfflineFireRedAsrModelConfig {
+    private final String encoder;
+    private final String decoder;
+
+    private OfflineFireRedAsrModelConfig(Builder builder) {
+        this.encoder = builder.encoder;
+        this.decoder = builder.decoder;
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public String getEncoder() {
+        return encoder;
+    }
+
+    public String getDecoder() {
+        return decoder;
+    }
+
+    public static class Builder {
+        private String encoder = "";
+        private String decoder = "";
+
+        public OfflineFireRedAsrModelConfig build() {
+            return new OfflineFireRedAsrModelConfig(this);
+        }
+
+        public Builder setEncoder(String encoder) {
+            this.encoder = encoder;
+            return this;
+        }
+
+        public Builder setDecoder(String decoder) {
+            this.decoder = decoder;
+            return this;
+        }
+    }
+}