* Added enums for week day, its mapper and test.
* Added enums, mapping and tests for case transformation.
* Changed test names to follow BDD style.
* Renamed test class.
* Removed enum, mapper and test for weekdays.
Added same for traffic signal.
* Moved the source code and tests under its own package.
* Added link to article.
* Fixed readme
* Fixed readme
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Co-authored-by: sraverkar.encora <sraverkar.encora@centricsoftware.com>
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