优化了平衡，尤其对于向后倾倒的几种极限情况进行优化

Shibo-main-TOMMY/lib/MPU6050_tockn/library.properties

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+name=MPU6050_tockn
+version=1.5.2
+author=tockn
+maintainer=tockn
+sentence=Arduino library for easy communicating with the MPU6050.
+paragraph=It can get accel, gyro, and angle data.
+category=Sensors
+url=https://github.com/Tockn/MPU6050_tockn
+architectures=*