Split embassy-time from embassy-executor.

examples/stm32h7/src/bin/low_level_timer_api.rs

@@ -3,13 +3,13 @@
 #![feature(type_alias_impl_trait)]
 
 use defmt::*;
-use embassy_executor::executor::Spawner;
-use embassy_executor::time::{Duration, Timer};
+use embassy_executor::Spawner;
 use embassy_stm32::gpio::low_level::AFType;
 use embassy_stm32::gpio::Speed;
 use embassy_stm32::pwm::*;
 use embassy_stm32::time::{khz, mhz, Hertz};
 use embassy_stm32::{into_ref, Config, Peripheral, PeripheralRef};
+use embassy_time::{Duration, Timer};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]