GSoC - Adds Qserial protocol into Communication Plugin

[techytoes]

This PR adds Qserial protocol into the communication plugin as part of GSOC project. Please review it @ErwanDouaille

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This PR:

• [ ] builds with SUCCESS for all platforms on the CI.
• [ ] does not generate new warnings.
• [ ] does not generate new unit test failures.
• [ ] does not generate new scene test failures.
• [ ] does not break API compatibility.
• [ ] is more than 1 week old (or has fast-merge label).

Reviewers will merge only if all these checks are true.

[ErwanDouaille]

Don't worry. I will look at it the next week. I'm overbooked :(

[techytoes]

@ErwanDouaille No problem. It is fine. Even, I am very busy right now in college stuff.

[guparan]

I had to revert this PR since it is unfinished work, not ready at all.