Add target build for ESP8266 board.

JerryScript-DCO-1.0-Signed-off-by: SaeHie Park saehie.park@samsung.com

targets/esp8266/include/native_esp8266.h

@@ -0,0 +1,33 @@
+/* Copyright 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NATIVE_ESP8266_H__
+#define __NATIVE_ESP8266_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+void native_gpio_dir (int, int);
+void native_gpio_set (int, int);
+int native_gpio_get (int);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif