Simplified version frameless Qt window from qwindowkit

Changes

1. Use original cmake functions, not qmsetup
2. Add FramelessWindow class for main window, FramelessDialog for dialog
3. Fix some bugs, e.g. debug output ReturnHr(21) tid(89a4) 80070057 The parameter is incorrect.

Usage

FramelessWindow

FramelessWindow w;
w.setWindowIcon(QIcon(":/app/example.png"));
w.setWindowTitle(tr("demo"));
w.show();

FramelessDialog

FramelessDialog dialog;
dialog.setWindowTitle("Dialog");
dialog.setFixedSize(400, 240);
dialog.setCentralWidget(new QLabel("Hello world"));
dialog.exec();