WiringPi: Bring back all of the stuffs I removed to do with peripherals

Imported from the official WiringPi repository, version 2.60.

Signed-off-by: Deokgyu Yang <secugyu@gmail.com>
Change-Id: I82dc00ab9f038f9bc4c6a9c4ca3affe5a5d33ae1

wiringPiD/drcNetCmd.h

@@ -0,0 +1,44 @@
+/*
+ * drcNetCmd.c:
+ *	Copyright (c) 2012-2017 Gordon Henderson
+ ***********************************************************************
+ * This file is part of wiringPi:
+ *	https://projects.drogon.net/raspberry-pi/wiringpi/
+ *
+ *    wiringPi is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU Lesser General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    wiringPi is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with wiringPi.  If not, see <http://www.gnu.org/licenses/>.
+ ***********************************************************************
+ */
+
+#define	DEFAULT_SERVER_PORT	6124
+
+#define	DRCN_PIN_MODE		1
+#define	DRCN_PULL_UP_DN		2
+
+#define	DRCN_DIGITAL_WRITE	3
+#define	DRCN_DIGITAL_WRITE8	4
+#define	DRCN_ANALOG_WRITE	5
+#define	DRCN_PWM_WRITE		6
+
+#define	DRCN_DIGITAL_READ	7
+#define	DRCN_DIGITAL_READ8	8
+#define	DRCN_ANALOG_READ	9
+
+
+struct drcNetComStruct
+{
+  uint32_t pin ;
+  uint32_t cmd ;
+  uint32_t data ;
+} comDat ;
+