Implement remaining stuff

Basic functionality milestone reached!!

app/src/App.cxx

@@ -0,0 +1,33 @@
+#include <execution>
+
+#include <App.h>
+
+using namespace std;
+
+void App::Init() {
+  auto fans = mSerializer.DeserializeFans(mSensorManager.RPMSensors());
+
+  auto fanCurves = mSerializer.DeserializeFanCurves(
+      mSensorManager.TemperatureSensors(), fans);
+
+  mController = make_unique<Controller>(fanCurves);
+}
+
+void App::InitialSetup() {
+  auto fans = mFanGenerator.FindFans(mSensorManager.RPMSensors(),
+                                     mPWMControlFacade.PWMControls());
+
+  std::for_each(std::execution::par, std::begin(fans), std::end(fans),
+                [](auto &&fan) { fan->FindMinPWM(); });
+
+  mFanLabeler.RunFanLabelInteraction(fans);
+
+  mSerializer.SerializeFans(fans);
+}
+
+void App::NormalOperation() {
+  if (mController)
+    mController->StartFanControlLoop();
+}
+
+void App::Shutdown() { mController.reset(); }