New VA108xx Rust workspace structure + dependency updates

- The workspace is now a monorepo without submodules. The HAL, PAC and BSP
  are integrated directly
- Update all dependencies: embedded-hal v1 and RTIC v2

vorago-reb1/examples/adt75-temp-sensor.rs

@@ -0,0 +1,25 @@
+#![no_main]
+#![no_std]
+use cortex_m_rt::entry;
+use embedded_hal::delay::DelayNs;
+use panic_rtt_target as _;
+use rtt_target::{rprintln, rtt_init_print};
+use va108xx_hal::{pac, prelude::*, timer::set_up_ms_delay_provider};
+use vorago_reb1::temp_sensor::Adt75TempSensor;
+
+#[entry]
+fn main() -> ! {
+    rtt_init_print!();
+    rprintln!("-- Vorago Temperature Sensor and I2C Example --");
+    let mut dp = pac::Peripherals::take().unwrap();
+    let mut delay = set_up_ms_delay_provider(&mut dp.sysconfig, 50.MHz(), dp.tim0);
+    let mut temp_sensor = Adt75TempSensor::new(dp.i2ca, 50.MHz(), Some(&mut dp.sysconfig))
+        .expect("Creating temperature sensor struct failed");
+    loop {
+        let temp = temp_sensor
+            .read_temperature()
+            .expect("Failed reading temperature");
+        rprintln!("Temperature in Celcius: {}", temp);
+        delay.delay_ms(500);
+    }
+}