fix: re-introducing the removed TTarget target properties

[Torwent]

I've done this from scratch without following the original so I'm not sure if I did this in a way you would like @ollydev so feel free to edit to your liking or just redo the whole thing.

I'm also not sure if the TTarget.ImageTarget I added makes much sense, but I did it for completion sake.
Personally I only need the Window, EIOS and Plugin.

I can imagine ESimbaTargetKind having some uses but I only bothered with the things I needed so I don't need to be parsing TTarget.ToString() anymore.

I also tested all target kinds and this seems to be working as I would expect but do review please

[Torwent]

Test script if you want:

{$loadlib Plugins/wasp-plugins/libremoteinput/libremoteinput}

var
  trgt: Pointer;
  winTrgt: TWindowHandle;
  canvas: TExternalCanvas;  
  pid: TProcessID;

procedure InjectNPair();
var
  timer: TCountDown;
begin
  winTrgt := GetSimbaTargetWindow();
  pid := winTrgt.GetPID();
  RIInject(pid);

  timer.Start(2000);
  repeat
    trgt := EIOS_PairClient(pid);
    if trgt <> nil then
      Break;
    Sleep(100);
  until timer.IsFinished;
end;

procedure PrintTargetInfo();
begin
  WriteLn Target.ToString();
  WriteLn Target.WindowTarget;
  WriteLn Target.ImageTarget;
  WriteLn Target.EIOSTarget;
  WriteLn Target.PluginTarget;
  WriteLn('TARGET: ', trgt);
  WriteLn('WINDOW: ', winTrgt);
end;

var
  img: TImage;
begin
  img := new TImage(500, 500);
  InjectNPair();

  SetWriteColor($00FFFF);
  WriteLn('Window: ');
  PrintTargetInfo();

  Target.SetImage(img);
  SetWriteColor($0000FF);
  WriteLn(LINE_SEP, 'Image: ');
  PrintTargetInfo();

  Target.SetEIOS({$MACRO LOADEDLIB(libremoteinput)}, ToStr(pid));
  SetWriteColor($FF0000);
  WriteLn(LINE_SEP, 'EIOS: ');
  PrintTargetInfo();


  Target.SetPlugin({$MACRO LOADEDLIB(libremoteinput)}, ToStr(pid), canvas);
  SetWriteColor($FFFF00);
  WriteLn(LINE_SEP, 'Plugin: ');
  PrintTargetInfo();
end.