libxt and other applications porting to libxcb

[pyrus at bsdmail.com]

Hello,

How come libxt and other applications within the X repository that use libx11 aren't converted into using libxcb? I realize that X11 is considered obsolete compared to Wayland, however, there's still widespread use of X11.

Also, why not bring libxaw3dxft to the repository, and partially port that and its dependencies to libxcb as well?