Refactoring, housekeeping, documentation

Add a class diagram. Still needs some details.
Refactor to better respect SOLID principles.
Housekeeping, move and rename classes/files.

app/src/FanGenerator.cxx

@@ -0,0 +1,76 @@
+#include "FanGenerator.h"
+#include <chrono>
+#include <iostream>
+#include <map>
+#include <memory>
+#include <thread>
+
+#include <FanGenerator.h>
+#include <fan/HwmonFan.h>
+#include <pwm/PWMControl.h>
+
+#define SETTLE_TIMEOUT 5
+
+using namespace std;
+
+vector<shared_ptr<Fan>>
+FanGenerator::FindFans(vector<shared_ptr<Sensor>> rpmSensors,
+                       vector<shared_ptr<PWMControl>> pwmControls) {
+  print("RPM Sensors", rpmSensors);
+  print("PWM controllers", pwmControls);
+  vector<shared_ptr<Fan>> mapping;
+
+  cout << "Setting all fans to maximum speed" << endl;
+  for (auto c : pwmControls) {
+    c->EnableManualControl();
+    c->pwm(100);
+  }
+
+  // Wait for fans to settle
+  cout << "Waiting for fans to settle" << endl;
+  this_thread::sleep_for(chrono::seconds(SETTLE_TIMEOUT));
+
+  // Record values of all RPM sensors
+  for (auto s : rpmSensors) {
+    int value = s->value();
+    s->max(value);
+
+    cout << s->toString() << " max value: " << s->max() << endl;
+  }
+
+  // Set each fan to 50% and check if a sensor matches
+  for (auto c : pwmControls) {
+    cout << "Setting " << c->toString()
+         << " to 50% and wait for it to settle..." << endl;
+    c->pwm(50);
+
+    this_thread::sleep_for(chrono::seconds(SETTLE_TIMEOUT));
+
+    for (auto s : rpmSensors) {
+      if (s->value() < s->max() * 0.7) {
+        cout << "Found matching sensor " << s->toString() << endl;
+        mapping.push_back(make_shared<HwmonFan>(c, s));
+      }
+    }
+
+    cout << "Setting fan back to 100%" << endl;
+    c->pwm(100);
+  }
+
+  cout << "Resetting all fans" << endl;
+  for (auto c : pwmControls) {
+    c->Reset();
+  }
+
+  return mapping;
+}
+
+template <class Printable>
+void FanGenerator::print(string listLabel, vector<shared_ptr<Printable>> list) {
+  cout << listLabel << ": " << endl;
+
+  for (auto i : list) {
+    cout << i->toString() << endl;
+  }
+  cout << "\n";
+}