[settings, frontend] Reorganize graphics/CPU settings, saner defaults (#3233)

- Fast GPU now defaults to 256, removed 128 since it's useless.
- Completely reorganized graphics and CPU settings on both platforms.
  Also got rid of Eden's Veil
- Merged some "use ..." settings that weren't really necessary.
- Changed ExtendedDynamicState to be a combo box

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3233
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

src/video_core/gpu.cpp

@@ -13,6 +13,7 @@
 
 #include "common/assert.h"
 #include "common/settings.h"
+#include "common/settings_enums.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/frontend/emu_window.h"
@@ -200,12 +201,10 @@ struct GPU::Impl {
 
     [[nodiscard]] u64 GetTicks() const {
         u64 gpu_tick = system.CoreTiming().GetGPUTicks();
+        Settings::GpuOverclock overclock = Settings::values.fast_gpu_time.GetValue();
 
-        if (Settings::values.use_fast_gpu_time.GetValue()) {
-            gpu_tick /= (u64) (128
-                               * std::pow(2,
-                                          static_cast<u32>(
-                                              Settings::values.fast_gpu_time.GetValue())));
+        if (overclock != Settings::GpuOverclock::Normal) {
+            gpu_tick /= 256 * u64(overclock);
         }
 
         return gpu_tick;