Restructure source directory

Introducing a directory structure to make it a bit less
daunting for new developers and perhaps even old hands.

The main folders all start with an upper character, so src
files are now located in;

* Core - Core data structures
* Gui - Main GUI elements
* Metrics - Models and Metrics
* FileIO - Device and File I/O
* Charts - All the chart types
* Cloud - Working with Web Resources
* Train - Anything Train View specific
* ANT - Our ANT+ Stack
* Resources - Images, Translations, Web etc

Apologies to anyone who needs to merge across this update.

src/Train/NullController.cpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2009 Steve Gribble (gribble [at] cs.washington.edu) and
+ *                    Mark Liversedge (liversedge@gmail.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <stdio.h>
+
+#include "NullController.h"
+#include "RealtimeData.h"
+
+#include <cmath>
+
+NullController::NullController(TrainSidebar *parent,
+                                                 DeviceConfiguration *dc)
+  : RealtimeController(parent, dc), parent(parent), load(100)
+{
+}
+
+int NullController::start() {
+  count = 0;
+  return 0;
+}
+
+int NullController::stop() {
+  return 0;
+}
+
+int NullController::pause() {
+  return 0;
+}
+
+int NullController::restart() {
+  return 0;
+}
+
+bool NullController::find() {
+    return true;
+}
+
+void NullController::getRealtimeData(RealtimeData &rtData) {
+    rtData.setName((char *)"Null");
+    //rtData.setWatts(load + ((rand()%25)-15)); // for testing virtual power
+    rtData.setWatts(load); // no randomisation
+    rtData.setLoad(load);
+    rtData.setSpeed(25 + ((rand()%5)-2));
+    rtData.setCadence(85 + ((rand()%10)-5));
+    rtData.setHr(145 + ((rand()%3)-2));
+    rtData.setHb(35 + ((rand()%30)), 11 + (double(rand()%100) * 0.01f));
+    processRealtimeData(rtData); // for testing virtual power etc
+
+    // generate an R-R data signal based upon 60bpm +/- 2bpm
+    if (count++%5 == 0) {
+
+        // emit measurementTime 1/1024s plus a little randomness, incremental beat count, bpm of 60 +/- 2
+        uint16_t m = (beats * 1024) + (rand()%50);
+        uint8_t b = ++beats;
+        uint8_t bpm =60+(rand()%2);
+
+        //qDebug()<<"rrdata:"<<m<<b<<bpm;
+        emit rrData(m, b, bpm);
+    }
+}
+
+void NullController::pushRealtimeData(RealtimeData &) {
+}