Move test-specific code fromthe framework

[denis-fokin]

Description

We are moving to a language-neutral approach in our shared code. In order to to move in this direction we can extract some methods and test supporting classes in an independent Gradle module.

To Reproduce

Hard to reproduce. It is mostly a refactoring that will make it easy to add multi-language support.

Expected behavior

No visible behavior.

Actual behavior

No visible behavior.

Visual proofs (screenshots, logs, images)

No visible behavior.

Environment

No environment.

Additional context

No addittonal context.