Feature/add time metedata to tecplot output file

Issue/feature addressed

Solution time value is missing in tecplot output files (See issue #249 (closed)). Carrying time values can be useful to visualize unsteady simulation results.

Proposed solution

Add time metadata to tecplot output.

Tests

Suggested reviewers

Please suggest any people who would be appropriate to review your code.

Notes

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Checklist

• [ ] Functions and classes, or changes to them, are documented.
• [ ] User guide/documentation is updated.
• Changelog is updated.
• [ ] Suitable tests added for new functionality.
• Contributed code is correctly formatted. (See the contributing guidelines).
• [ ] License added to any new files.
• No extraneous files have been added (e.g. compiler output or test data files).