fix: issues on master

fix: issues in master logic

tests: advanced master tests

tests: add basic master testbench

fix: some stuff

fix: logic fixes master state

feat: prepare i2c slave tb model

tests: add address generator testbench

fix: address generator minor issues

tests: add startstop condition generator testbench

fix: start stop condition generator behavior

fix: make sure scl changed after delay

tests: add test for scl generator

fix: scl generator minor mistakes

feat: add master top entity

fix: mcu slave tbs, wait for sync rst

chore: test flags for ghdl to compile

feat: synchronize reset in mcu slave tops

feat: add master state entity

feat: add scl generator