Enhancements to Gherkin Syntax Customization

[yanjustino]

This pull request includes several changes to enhance the functionality and documentation of the GherXunit project. The most important changes include the introduction of a custom lexer for Gherkin syntax, updates to the project structure, and improvements to the test execution methods.

Enhancements to Gherkin Syntax Customization:

• Added support for custom lexers in Gherkin syntax, allowing users to define their own symbols or emojis for Gherkin keywords. (README.md, README_PTBR.md, src/base/GherXunit.Core/Interfaces.cs, src/base/GherXunit.Core/Methods.cs, src/base/GherXunit.Core/Samples/Localization/LocalizationTest.cs, src/base/GherXunit.Core/Samples/Localization/LocalizationTest.Steps.cs) [1] [2] [3] [4] [5] [6]

Project Structure Updates:

• Removed the samples and BddSample projects from the solution file to streamline the project structure. (src/GherXunit.sln) [1] [2]

Test Execution Method Improvements:

• Refactored test execution methods to support custom lexers and improved method naming for clarity. (src/base/GherXunit.Core/Methods.cs)

Dependency Updates:

• Added new package references for Moq and Microsoft.Extensions.Logging to support mocking and logging in tests. (src/base/GherXunit.Core/GherXunit.Core.csproj)

Documentation Enhancements:

• Updated the README files to include examples and explanations of the new custom lexer functionality. (README.md, README_PTBR.md) [1] [2]

These changes collectively improve the flexibility, maintainability, and usability of the GherXunit project.