Some layout-improvements in /system/devices/vbe
Started with video-mode-switching support.
Working on video-mode-switching.
Video-mode-switching works. But still needs some improvement.
Additionally, we can choose the desired cols/rows of the vterm
in the drivers file. Thus, the kernel-option has been removed.
Fixed error-reporting
Added a command to get the video devide to vterm.
This can be used by raptor to directly draw talk to
the video-device. For now it works well in text-mode.
The guishell has to be restructured a bit to support
that.
Fixed arg-checking in vtctrl