Update pagination validation and add test cases

[jatindersingh93]

• Add conditional validators for page/limit parameters, either have both or none.
• Update and include new spec for the validations
• updated API docs with Request and response

SC3485

Description

Types of changes

Checklist

• [x] I have read the CONTRIBUTING doc
• [x] I have checked that unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added necessary documentation (if appropriate)

Further comments

[github-actions[bot]]

Coverage Report

Totals
Statements:	59.6% ( 2801 / 4700 )
Methods:	50% ( 319 / 638 )
Lines:	66.33% ( 1684 / 2539 )
Branches:	52.4% ( 798 / 1523 )

[codeclimate[bot]]

Code Climate has analyzed commit 61a7f01a and detected 2 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Duplication	2

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 66.3% (0.0% change).

View more on Code Climate.