~ruther/vhdl-i2c

ref: 8ce5b7cab22cc59e18f9f9db54c5280fece53c8d vhdl-i2c/vivado/nsv_i2c.xpr -rw-r--r-- 26.4 KiB 
tests: add mcu tests working with slave top designs

chore: add Vivado project for Basys 3 board
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