Option to exclude specific ports from autodetection.

[gufpewga]

Hi, I really like your work.
I use it for Pi serial monitor, but have issue with auto connecting to my LTE modem that I have in my thinkpad.
Could you add something like blacklist so autodetection and connection would't connect to those COM ports?
They don't change number of port so it would be easy to separate.

[fasteddy516]

I like this idea, and working with an exclude-list of ports based on COMx identifiers should be pretty straightforward. I'll add this to my todo list for the next release. Thanks for the suggestion!