Time revamp (#2304)

* Don't Use OSCalendarTime for Speedrun Timing

- Shouldn't rely on OSTicksToCalendarTime since it will be changed to handle time zone conversion, and that doesn't make sense on elapsed time

* Use OSGetSystemTime Extension

- Fixes desyncing issues with save file time and a couple other odd instances, particularly on mobile platforms that suspend apps

* Time revamp

* Update aurora

* Split IGT/RTA calculations

* Shift-Turbo to slow down

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Co-authored-by: SuperDude88 <82904174+SuperDude88@users.noreply.github.com>

src/dusk/frame_interpolation.cpp

@@ -147,6 +147,10 @@ void begin_frame(FrameInterpMode mode, bool is_sim_frame, float step) {
     g_enabled = mode != FrameInterpMode::Off;
     g_is_sim_frame = is_sim_frame;
     g_step = std::clamp(step, 0.0f, 1.0f);
+    if (!g_enabled) {
+        g_interpolating = false;
+        clear_replacements();
+    }
 }
 
 bool is_enabled() {