I2C

I2C is used at run time in 9 crates (of which 7 optionally). It is a direct run-time dependency in 4 crates.

Depender (with downloads and own rev deps)			I2C version
650	1	ddc-i2c		^0.1
1.7K	4	i2c-linux	optional	^0.1.0
		i2c-i2cdev		^0.1.0
340	2	nvapi	optional	^0.1.0