Generate C# exception for the project

[spywo]

Like other languages, the .NET should have its own exception defined for project.

[Copilot]

Pull Request Overview

This PR adds a custom exception class for C# bindings in the project, replacing generic Exception usage with a project-specific exception type. The implementation includes error code mapping, human-readable error descriptions, and comprehensive documentation.

• Adds a custom {NameSpace}Exception class with error code and message properties
• Implements error name and description lookup functionality for better error reporting
• Updates error throwing logic to use the new custom exception instead of generic Exception

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[Copilot]

The FormatMessage method creates duplicate code by repeating the same switch logic found in ErrorName and ErrorDescription properties. Consider reusing the existing properties instead of calling separate GetErrorName and GetErrorDescription methods.

[Copilot]

The GetErrorName and GetErrorDescription methods duplicate the switch logic already present in the ErrorName and ErrorDescription properties. This creates code duplication and maintenance overhead. These static methods are unnecessary since the instance properties provide the same functionality.

Suggested change

	w.Writeln(" {")
	w.Writeln(" switch (errorCode)")
	w.Writeln(" {")
	w.Writeln(" case 0: return \"SUCCESS\";")
	for _, errorDef := range component.Errors.Errors {
	w.Writeln(" case %d: return \"%s\";", errorDef.Code, errorDef.Name)
	}
	w.Writeln(" default: return \"UNKNOWN\";")
	w.Writeln(" }")
	w.Writeln(" }")
	w.Writeln("")
	w.Writeln(" private static string GetErrorDescription(int errorCode)")
	w.Writeln(" {")
	w.Writeln(" switch (errorCode)")
	w.Writeln(" {")
	w.Writeln(" case 0: return \"success\";")
	for _, errorDef := range component.Errors.Errors {
	w.Writeln(" case %d: return \"%s\";", errorDef.Code, errorDef.Description)
	}
	w.Writeln(" default: return \"unknown error\";")
	w.Writeln(" }")
	w.Writeln(" }")

[gangatp]

Looks good, thank you

Before merging please update the RTTI example for the C# binding, and if possible create an example for reading the exception in it.