BasicAppSettings class

Retrieves application settings from various sources: Command line, app.config, if necessary app.config.user, Environment.
Also implements registry reading, but does not yet use this itself. Under certain circumstances, also evaluates public properties (DumpAppSettings=true). Does not access the database, but provides corresponding properties.
The properties and the filling of the same are not mandatory, they serve for convenience only; alternatively, it can also be accessed directly from the application via the interfaces IGetStringValue and IGetValue<T> can be used to access the application/system environment.
The application settings implemented here should be generally valid for standalone applications; for application-specific settings, this class should be can be derived. Sources are analysed in the following order (the 1st hit wins):
1. command line parameters (not for .NetCore web applications)
2. settings in the app.config (not for .NetCore web applications, then appsettings.json instead)
3. settings in the app.Config.user if necessary
4. environment
5th registry
6. possibly public properties (DumpAppSettings=true).
Time-critical Initializations should generally be avoided in derived AppSettings. However, the corresponding properties can be defined and implemented lazily if necessary.
The "DumpAppSettings" and "DumpLoadedAssemblies" properties can be used to debug all properties with their sources and the FullNames of all assemblies loaded at runtime are logged.

public class BasicAppSettings : IGetStringValue,
	 
	IGetValue, IDisposable

Public Class BasicAppSettings
	Implements IGetStringValue, IGetValue, IDisposable

public ref class BasicAppSettings : IGetStringValue,
	 
	IGetValue, IDisposable

type BasicAppSettings = 
    class
        interface IGetStringValue
        interface IGetValue
        interface IDisposable
    end