WIP on adding support for i2c devices.
added new i2c-device to i2c module, changed i2c-device namespace to Cylon.I2C.
Update driver to use new i2c read/write format in the adaptor.
Removed buffer as var name, it was being treated as reserved word.
Fix typo in blinkm command list.
remove erroneous comment
Merge pull request #3 from hybridgroup/72-i2c-support

Added i2c device library.