Added a GPIO to power on/off for external I2C sensor(s) (with LEDs)

Dependencies:   UniGraphic mbed vt100

18-Jun-2018 外部センサの電源オン・オフ機能は下位互換の為に無効になっていました。 この版で再度有効にしました。

Revision:
0:846e2321c637
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/afLib/msg_types.h	Fri Apr 13 04:19:23 2018 +0000
@@ -0,0 +1,38 @@
+/**
+ * Copyright 2015 Afero, Inc.
+ *
+ * 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 MSG_TYPE_H__
+#define MSG_TYPE_H__
+
+typedef uint8_t msg_type_t;
+
+#define MSG_TYPE_UNKNOWN    0
+#define MSG_TYPE_ERROR      1
+
+// Messaging channel messages
+#define MESSAGE_CHANNEL_BASE                    10
+#define MSG_TYPE_SET                            (MESSAGE_CHANNEL_BASE + 1)
+#define MSG_TYPE_GET                            (MESSAGE_CHANNEL_BASE + 2)
+#define MSG_TYPE_UPDATE                         (MESSAGE_CHANNEL_BASE + 3)
+
+#define NEGOTIATOR_CHANNEL_BASE                 20
+#define MSG_TYPE_AUTHENTICATOR_SESSION_INFO     (NEGOTIATOR_CHANNEL_BASE + 1)
+#define MSG_TYPE_PERIPHERAL_SESSION_INFO        (NEGOTIATOR_CHANNEL_BASE + 2)
+#define MSG_TYPE_SIGNED_SESSION_PUBLIC_KEYS     (NEGOTIATOR_CHANNEL_BASE + 3)
+#define MSG_TYPE_MESSAGING_AVAILABLE            (NEGOTIATOR_CHANNEL_BASE + 4)
+#define MSG_TYPE_PAIRING_COMPLETE               (NEGOTIATOR_CHANNEL_BASE + 5)
+
+#endif  // MSG_TYPE_H__