INSTALLATION
    - Before install cnextb, install pyserial:
            pip install pyserial
     	or
     		python -m pip install pyserial

	- First time installs:
     		pip install cnextb
     	or
     		python -m pip install cnextb

	- Specific version:
		    pip install cnextb==version
	    or
		    python -m pip install cnextb==version