Continuation of #480 and #477

🚀 Features

Introduces a framework for link statistics, enabling the tracking of various metrics, starting with latency measurement.

• LinkStatistics Class: A new class to manage multiple types of link statistics, facilitating the addition of more metrics in the future.
• Latency Measurement: A dedicated Latency class is introduced to send periodic ping requests to the Crazyflie. It calculates the round-trip latency and maintains the 95th percentile (p95) latency over recent measurements.

Refactors link quality callback to contain signal health obj with additional signal health information:

• Uplink RSSI parsed from ack
• Bandwidth congestion calculated using null packet ratio
• Packet rate

📝 To-do

• CF link C++ uses a different calculation for link quality, investigate if we can unify this.
• Need to better integrate Receive uplink RSSI, calculate bandwidth congestion and packet rate #480 and Introduce Link Statistics and Latency Measurement #477, the radio link statistics callback can perhaps be routed into LinkStatistics.
• Review naming for better clarity. Link statistics, link quality, and signal health can be easily confused. Also signal health is not a good name if we integrate things like bandwidth congestion.
• Can integrate Bandwidth congestion and rate from radio driver #479 into the same signal health format.

The implementation improves the lib's ability to monitor communication quality and lays the groundwork for further enhancements in link statistics.