~ruther/vhdl-i2c

ref: 37f25c631ded6dc90b171ba2c733eda51a5f31bc vhdl-i2c/src/ssd1306 d---------
feat: split ssd1306 counter to logic entity
fix: count to 9, make i2c frequency 10 MHz
fix: full_on skips indices
fix: many changes