[RTD-87] Add validators for BinRangeResponse

[and-mora]

Description

This PR adds the validator for ResponseEntity and the relative body BinRangeResponse that will be returned by the bin range api.

List of Changes

• Changed date format in BinRangeResponse
• Added validator

Motivation and Context

The response from the bin range api needs to be validated. This will be accomplished by checking the http status and the body inside the response.

• The http status must be 200.
• The body is required to have all fields non-null and the size of fileLinks field must be equal to numberOfFiles field.

How Has This Been Tested?

• Unit Test Suite
• Integration Test Suite
• Load Tests

Types of changes

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

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication

[TommasoLencioni]

LGTM, good job!