Add MC3479 accelerometer on tiny84A-MU + code for operation.

The aim of this project is to integrate a new feature into an existing and functioning product by adding an MC3479 accelerometer (or an equivalent 2-axis model) to the ATtiny84A-MU.

This task focuses solely on the accelerometer aspect of the project.

- Require a complete schematic of the accelerometer, including its connection to the ATtiny.
- To be provided a functional code in "assembly" to gather and compare movement data, allowing the ATtiny to wake up when motion is detected and enter sleep mode when no movement is detected (flag).
- Minimizing energy consumption is essential, with the use of a watchdog on the accelerometer to conserve as much power as possible.