Use TW_STATUS macro

I suggest to use `TW_STATUS` macro from [avr-libc](https://github.com/vancegroup-mirrors/avr-libc/blob/06cc6ff5e6120b36f1b246871728addee58d3f87/avr-libc/include/util/twi.h#L218) instead of `switch (status & I2C_STATUS_MASK)`. 
By this way your code will transform to `switch (TW_STATUS)`

https://github.com/Neomer/AVRC/blob/85df4a9d86b10f0b8aae3a02b5b22199fc82f6cf/samples/i2c/ms.cpp#L23