[ISSUE #182] Introduce timestamp uml-seuqnce-id

[svlad-90]

[ISSUE #182] Introduce timestamp uml-seuqnce-id

1. [x] Have you followed the guidelines in our Contributing document?
2. [x] Have you checked to ensure there aren't other open Pull Requests for the same update/change?
3. [ ] Have you built the project, and performed manual testing of your functionality for all supported platforms - Linux and Windows? Verified only on Ubuntu.
4. [x] Is your change backward-compatible with the previous version of the plugin?

Change description:

• Implemented the UTS uml-sequence-id
• Removed the reference to OEM-specific trace
• Exchanged usage of QString::mid with QString::midRef function to avoid warnings
• Removed the redundant "qdlt.h" include
• Extended the source code comments
• Updated README.md

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Verification criteria:

Verified manually on the Ubuntu OS.