Implement remaining stuff

Basic functionality milestone reached!!

app/src/Controller.cxx

@@ -0,0 +1,37 @@
+#include <chrono>
+#include <memory>
+
+#include <Controller.h>
+#include <fan/FanCurve.h>
+
+using namespace std;
+
+#define TIMEOUT 500
+
+Controller::Controller(vector<shared_ptr<FanCurve>> curves)
+    : mFanCurves(curves), mRun(false) {}
+
+Controller::~Controller() { StopFanControlLoop(); }
+
+void Controller::StartFanControlLoop() {
+  mRun = true;
+  Loop();
+  // mWorker = make_unique<thread>(&Controller::Loop, this);
+}
+
+void Controller::StopFanControlLoop() {
+  mRun = false;
+  // if (mWorker->joinable())
+  //   mWorker->join();
+  // mWorker.reset();
+}
+
+void Controller::Loop() {
+  while (mRun) {
+    for (auto c : mFanCurves) {
+      c->DoFanControl();
+    }
+
+    this_thread::sleep_for(chrono::milliseconds(TIMEOUT));
+  }
+}