Add Duktape stub

library/src/main/java/com/squareup/duktape/Duktape.java

@@ -0,0 +1,26 @@
+package com.squareup.duktape;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+@SuppressWarnings("all")
+public class Duktape implements Closeable {
+
+    public static Duktape create() {
+        throw new RuntimeException("Stub!");
+    }
+
+    @Override
+    public synchronized void close() throws IOException {
+        throw new RuntimeException("Stub!");
+    }
+
+    public synchronized Object evaluate(String script) {
+        throw new RuntimeException("Stub!");
+    }
+
+    public synchronized <T> void set(String name, Class<T> type, T object) {
+        throw new RuntimeException("Stub!");
+    }
+
+}