ele: MainBoard - add and repair some labels (IO14, IO12 -> IO4, ...)

ele: MainBoard - add notes to schema with more description

fw: esp_serial_pwm_test - add definitions of channels on the PCB v1.1

ele: MainBoard - change value of C3 - from 1uF to 10uF

ele: MainBoard + MotorEncoder - set synchronization with Fusion

fw: esp_serial_pwm_test - temporary remove fmt library from the project because compiling error

ele: MainBoard - fix TO92 transistors pinout, change diodes package from SMD to TH, some signals routing improvements, fix some labels position, change version to 1.2

fw: move project motorEncoderTest to folder fw

fw: power_management_arduino_test - add project

ele: Tune layout, improve GND coherence