~ruther/vhdl-i2c

ref: 4880c4694933094acea8347a4dd2a939d2bbc74a vhdl-i2c/src/mcu_slave d---------
fix: issues on master
feat: synchronize reset in mcu slave tops
tests: add possibility to check sda stability in mcu_slave
tests: add mcu tests working with slave top designs
chore: fix slave naming in mcu slave designs
feat: add counter and register testing slave top levels