v0.2.3

Another bump before FSP201 support is merged, which can affect BNO085 working. This version should also be better compatible with firmware uploading tool, because it contains manifests for it now.

Additions:

• Partial support for ESP32-C3 by @TheButlah

Fixes:

• Fix compatibility with firmware tool (@loucass003)
• Saving calibration data for people that are running two MPU9250 IMUs (@unlogisch04)
• Having a MPU6050 as the secondary IMU on a tracker would not detect it (@Kamilake)
• Using BMI160 IMUs on ESP32-based boards (@unlogisch04)
• That some MPU6500 IMUs could not connect (@inkuxuan)
• Multiple other fixes (@doormatt-dev, @TheButlah, @unlogisch04, @deiteris)