v0.9.6-dev

• improve spi driver performance and memory usage
• icm42xxx configure anti-aliasing filter to ~200hz and 3rd order
• icm42xxx fix bank switching
• increase accel calibration limit
• quacmode
• fix motor beep melody timing
• bmi270 enable feature for better axis accuracy (CAS & IOC), thanks @DusKing1
• bmi270 enable hardware axis calibration (CRT), thanks @DusKing1
• source file naming improvments
• add configurable vtx powertable
• fix in-config configuration for bb51 escs
• fix reversal after aborted and manually flipped turtle, thanks @pwojt

new targets:

• speedybeef405v3
• iflight_f411_pro
• zeezwhoop
• tmotorf411
• foxeerf722_v2, thanks @damian-kolakowski
• tmotorf411_elrs
• mambaf405us_i2c, thanks @damian-kolakowski
• flywoof411_5in1_aio
• cross_f4