/// <summary>
/// Clears the script session, and resets the program state
/// back to the initial state.
/// </summary>
public void ClearScriptSession()
{
directoryReader.ClearSesssion();
scriptReader.ClearSession();
powershellExecuter.ClearSession();
UpdateScriptCategoriesList();
SetInitialScriptCategory();
IsScriptSelected = false;
IsBusy = false;
}