New footprint for OLED connector

Tweaks Swapped ENC_L and ENC_R pins, changed UART pins for STM32<->ESP connection, connected buzzer, LCD and IMU I2C lines were splitted and connected accordingly, added I2C pullup resistors

Major upgrade

Moved to KiCad

Board outline

Voltage sources, schematic division

Template schematic page

Add gitignore

Initial commit