use spin sleep for more accurate VI timing (#97)

Cargo.toml

@@ -19,6 +19,7 @@ sha2 = "0.10"
 rusttype = "0.9"
 futures = "0.3"
 sdl2-sys = "0.37"
+spin_sleep = "1.3"
 clap = { version = "4.4", features = ["derive"] }
 
 [dependencies.sdl2]

src/device/vi.rs

@@ -163,7 +163,7 @@ pub fn speed_limiter(device: &device::Device) {
     if result.is_err() {
         let outcome = result.unwrap_err();
         let dur = outcome.wait_time_from(governor::clock::DefaultClock::default().now());
-        std::thread::sleep(dur);
+        spin_sleep::sleep(dur);
 
         device.vi.limiter.as_ref().unwrap().check().unwrap();
     }