Added classifiers for Controller Area Network (CAN)

[cfsok]

Request to add a new Trove classifier.

The name of the classifier(s) you would like to add:

• Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN)
• Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN) :: J1939
• Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN) :: CANopen

Why do you want to add this classifier?

The CAN bus is a communications protocol (OSI layers 1 and 2) for embedded devices used in the automotive, machinery, automation, aviation and other industries and there.

At least a couple of hundred projects can benefit from there classifiers.

• https://pypi.org/search/?q=%22can+bus%22&o=-created
• https://pypi.org/search/?q=J1939&o=-created

The most influential project using CAN is https://pypi.org/project/python-can/.

J1939 and CANopen are higher layer protocols on top of CAN.

[di]

Hi, can you please correct the linting failure here? Thanks!