feat: search range of verses

[Whiskydog]

Description

Added functionality for the searching of a range of verses in its separate route handler. Also implemented its tests and documented it accordingly.

Motivation or Context

It resolves issue #35

How Has This Been Tested?

I implemented the relevant tests in the verse.test.js file checking for the pertaining edge cases that I saw fit. However feel free to point out any testing that I left out. I realized the tests using Docker containers on Windows; all green.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.