Mcvqoe-base

- Various errors fixed
- Functionality to individualize measurement tests.log
- Serial buffer flush
- Versioning fix
- New file/folder structure
- Multiple iterations

This update enables the Diagnostic tools to work with access delay test data. Minor documentation and formatting updates.

First working release with `mcvqoe.diagnostics`

**Full Changelog**: https://github.com/usnistgov/mcvqoe-base/compare/v1.1.0...v1.2.0

* Added some two-location measurement features
* General updates/improvements

Initial public release.