Commented Task: Add Test Cases for All the current methods that does not [1785]

Possibility to Mock<IToken> to get the results we expect instead of directly performing the queries.
Comments: Associated with changeset 33749: Version 0.9.0.0
- Tested MessageQueryValidator
- Tested MessageQueryExecutor
- Removed IObjectWrapper because JObject are configurable and therefore testable
- Removing ExcludeFromCodeCoverage in test classes