[core/arm] introduce vtable bouncing (#2943)

Basically this just makes functions that go into zero-page or invalid addresses "bounce" back (with a return err of 0) such that it emulates a subroutine returning appropriatedly... this is mainly inspired by [this particular commit](https://git.citron-emu.org/Citron/Emulator/commit/fbb4f5c015d778ed0c8e2d91b01dcdffd7da9681); with the key difference of accounting for the scheduler fucking up some random bs.

I don't like this hack but anyways maybe it fixes something?

Signed-off-by: lizzie lizzie@eden-emu.dev

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2943
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/common/settings.h

@@ -240,7 +240,7 @@ struct Values {
                                                     Category::Cpu};
     SwitchableSetting<CpuAccuracy, true> cpu_accuracy{linkage, CpuAccuracy::Auto,
                                                       "cpu_accuracy", Category::Cpu};
-
+    SwitchableSetting<bool> vtable_bouncing{linkage, true, "vtable_bouncing", Category::Cpu};
     SwitchableSetting<bool> use_fast_cpu_time{linkage,
                                               false,
                                               "use_fast_cpu_time",