Add support for @title keyword annotation

[DominykasValutis]

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you written unit tests?
• Have you written unit tests that cover the negative cases (i.e.: if bad data is submitted, does the library respond properly)?
• This PR is associated with an existing issue?

Closing issues

Put closes #1656

If this is a new feature submission:

• Has the issue had a maintainer respond to the issue and clarify that the feature is something that aligns with the goals and philosophy of the project?

Potential Problems With The Approach

Test plan

[github-actions]

Hello there DominykasValutis 👋

Thank you and congrats 🎉 for opening your first PR on this project.✨

We will review the following PR soon! 👀

[WoH]

Sorry for the delay. Could you add a test to make sure this doesn´t break accidentally?

[DominykasValutis]

@WoH could you guide me for which component you want me to add test, cannot find any previous test for validatorUtils.ts file

[WoH]

There are no tests for that file explicitly, but you can add an annotation in the test fixtures and add an assertion for OpenAPI V2 / V3 here:

https://github.com/lukeautry/tsoa/tree/master/tests%2Funit%2Fswagger

schemaDetails(3).ts