feat: implement pagination support in repository methods and add Pagination

[codedesignplus]

This pull request introduces a Pagination class for handling paginated data and updates the repository methods to return Pagination objects instead of lists. Additionally, it modifies the related test cases to accommodate these changes.

Introduction of Pagination:

• packages/CodeDesignPlus.Net.Core/src/CodeDesignPlus.Net.Core.Abstractions/Models/Pager/Pagination.cs: Added a new Pagination class for handling paginated data, including properties for Data, TotalCount, Limit, and Skip, and a static Create method for instantiating the class.

Repository Method Updates:

• packages/CodeDesignPlus.Net.Mongo/src/CodeDesignPlus.Net.Mongo.Abstractions/IRepositoryBase.cs: Updated the MatchingAsync methods to return Pagination objects instead of lists. [1] [2] [3] [4] [5] [6]
• packages/CodeDesignPlus.Net.Mongo/src/CodeDesignPlus.Net.Mongo/Repository/RepositoryBase.cs: Implemented the Pagination logic in the MatchingAsync methods, including counting documents and creating Pagination instances. [1] [2] [3] [4] [5] [6] [7] [8] [9]

Test Case Updates:

• packages/CodeDesignPlus.Net.Mongo/tests/CodeDesignPlus.Net.Mongo.Test/Repository/RepositoryBaseTest.cs: Updated test cases to check the Data property of Pagination objects instead of the list directly. [1] [2] [3] [4] [5]