Initial support for mbed OS 5.1 (#1318)

- Wrappers for mbed I/O drivers
- Makefile for automating build process
- Script to generate pin definitions from mbed OS source tree
- Updates to js2c to enable building without a main.js file

JerryScript-DCO-1.0-Signed-off-by: Matthew Else Matthew.Else@arm.com

targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/setTimeout.cpp

@@ -0,0 +1,37 @@
+/* Copyright (c) 2016 ARM Limited
+ *
+ * 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.
+ */
+#include "jerryscript-mbed-drivers/setTimeout-js.h"
+#include "jerryscript-mbed-event-loop/EventLoop.h"
+
+/**
+ * setTimeout (native JavaScript function)
+ *
+ * Call a JavaScript function once, after a fixed time period.
+ *
+ * @param function Function to call
+ * @param wait_time Time before function is called, in ms.
+ */
+DECLARE_GLOBAL_FUNCTION(setTimeout) {
+    CHECK_ARGUMENT_COUNT(global, setTimeout, (args_count == 2));
+    CHECK_ARGUMENT_TYPE_ALWAYS(global, setTimeout, 0, function);
+    CHECK_ARGUMENT_TYPE_ALWAYS(global, setTimeout, 1, number);
+
+    jerry_acquire_value(args[0]);
+    int interval = int(jerry_get_number_value(args[1]));
+
+    mbed::js::EventLoop::getInstance().getQueue().call_in(interval, jerry_call_function, args[0], jerry_create_null(), (jerry_value_t*)NULL, 0);
+
+    return jerry_create_undefined();
+}