flutter_i2c 0.2.0

`flutter_i2c` is a library to communicate with i2c slave devices.

0.2.0

• lib: src: add readByteReg() and readByteListReg()
• lib: src: add writeByteReg() and writeByteListReg()
• ffigen: exclude all macro

0.1.0

• Change MethodChannel to ffi
• linux: lot_i2c: add init() and dispose()
• linux: lot_i2c: add transmit(), receive() and transceive()