Examples with different Drone services

- [x] action
- [x] - arm & takeoff [mav/mav-sdk/examples/takeoff.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/takeoff.rs)
- [x] - arm/disarm [mav/mav-sdk/examples/arm_disarm.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/arm_disarm.rs)
- [ ] calibration
- [ ] camera
- [ ] core
- [ ] geofence
- [ ] gimbal
- [x] info - version & identification [mav/mav-sdk/examples/takeoff.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/takeoff.rs)
- [ ] manual control
- [ ] mission
- [ ] mocap
- [ ] offboard
- [ ] param
- [ ] shell
- [ ] telemetry
- [x] Attitude Euler subscription - [mav/mav-sdk/examples/telemetry_subscription.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/telemetry_subscription.rs)
- [ ] Set rate request ( see https://docs.rs/mav-sdk/0.1.0/mav_sdk/grpc/telemetry/struct.TelemetryServiceClient.html#method.set_rate_attitude)
- [ ] Get GPS global orign request (see https://docs.rs/mav-sdk/0.1.0/mav_sdk/grpc/telemetry/struct.TelemetryServiceClient.html#method.get_gps_global_origin)

## Examples
Here are 2 examples that cover one Action & one Telemetry service:

- [mav/mav-sdk/examples/takeoff.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/takeoff.rs)
An example of action Arm & Takeoff request-response and info version & identification of the drone.

- [mav/mav-sdk/examples/telemetry_subscription.rs](https://github.com/AeroRust/mav/blob/main/mav-sdk/examples/telemetry_subscription.rs)
An example for a telemetry Attitude Euler subscription and listening for telemetry data.