feat: add address generator

feat: add start, stop condition generator

feat: add waiting output to slave

feat: add done fields to tx, rx

tests(mcu): count correctly, excluding the address

chore: get rid of "pulse" from scl names

feat: handle errors in slave state

Moves logic of error handling to slave_state
from tx entity.

tests: add regs mcu_slave test

feat: add unexpected_sda tx signal

refactor: get rid of sda, scl overrides, drive sda, scl directly

refactor: use 'H' std_logic state instead of custom pull up type

tests: add possibility to check sda stability in mcu_slave

tests: add mcu_slave counter tb

chore: split mcu_slave tb to separate library

tests: rename startstop_condition_detector testbench to contain tb

tests: add messages to checks

tests: add pull up sda, scl behavior

tests: split master i2c functions to separata package

tests: add mcu tests working with slave top designs

chore: add Vivado project for Basys 3 board