Implemented internal commands

Declared constatnts as define
Declared variables inLength, i2cSpeed, power
Implemented CONFIG command
Implemented STATUS_READ, CONTROL_WRITE commands
Added I2CM instance

Added I2C instance with SCL/SDA pins
Implemented READ/WRITE operations

Added function stall for debugging
Renamed variable inLength to dataLength because of meaning
Implemented standard READ/WRITE procedure
Added I2CM_Start to start the I2C