/// <summary>
/// Search the plug-in's dictionary for the specified plug-in and if it is
/// not found then add it to the dictionary.
/// </summary>
/// <param name="plugIn"></param>
/// <returns></returns>
internal static RdkPlugIn GetRdkPlugIn(PlugIns.PlugIn plugIn)
{
var found = FromRhinoPlugIn(plugIn);
if (null != found) return found;
var plugin_pointer = plugIn.NonConstPointer();
return AddPlugInToDictionary(plugin_pointer, plugIn.Id, plugIn.m_runtime_serial_number);
}
