switch to INI for settings (easier), make settings a singleton thingy, slightly simplify core pause/stop/reset. Drop support for remappable inputs for now

src/frontend/EmuThread.cpp

@@ -7,8 +7,8 @@ EmuThread::EmuThread(const std::shared_ptr<n64::Core> &core, double &fps, Render
     renderWidget(renderWidget), core(core), settings(settings), fps(fps) {}
 
 void EmuThread::run() noexcept {
-  isRunning = true;
-
+  if(!core->romLoaded) return;
+  
   auto lastSample = std::chrono::high_resolution_clock::now();
   auto avgFps = 16.667;
   auto sampledFps = 0;
@@ -49,15 +49,11 @@ void EmuThread::TogglePause() const noexcept {
 }
 
 void EmuThread::Reset() const noexcept {
-  core->pause = true;
   core->Stop();
   core->LoadROM(core->rom);
-  core->pause = false;
 }
 
 void EmuThread::Stop() const noexcept {
   Util::RPC::GetInstance().Update(Util::RPC::Idling);
-  core->rom = {};
-  core->pause = true;
   core->Stop();
 }