Add support for "can" type, and "bitrate" property

[cordellcalitz]

Thanks for the great node module!

I would like to use this on an embedded system to configure the CAN ports on the fly without needing to exec ip commands, but I found that I could not set "can" type devices and "bitrate" was not supported.

A typical command to configure a can port would look something like this:
sudo ip link set can0 type can bitrate 125000

I tested my changes locally and it seems to do the trick.

Please let me know if you would like me to spin the version in this PR or if you will do that before publishing?

[diosney]

Hi! Thank you for using the library and doing the PR.

I'm going to merge it, make several changes like add the rest of can options and publish a new version, which should be finished by tomorrow.

Thanks again!

[diosney]

I added the rest of the parameters and published 2.2.0.

Check 1e07a12 in case that you want to confirm them.

[cordellcalitz]

Great, thanks for the update!