[MSPAINT] Allow ToolBox to be right-aligned (#5213)

The user will be able to move ToolBox in the main window by dragging.
- Add Bar2ID registry setting.
- Add CPaintToolBar class to encapsulate the toolbar code.
- Capture and track the mouse dragging in CToolBox.
- Move the ToolBox if dragging is beyond the center position.
CORE-18867

base/applications/mspaint/toolsettings.cpp

@@ -414,6 +414,8 @@ LRESULT CToolSettingsWindow::OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lPar
         case TOOL_PEN:
             break;
     }
+
+    ::SetCapture(::GetParent(m_hWnd));
     return 0;
 }