"Console" for command line commands within gui

[sapier]

A long time ago when ego shooters like quake where up to date those games did have "console" to enter commands from within game. A feature like that might be usefull in minetest too.

Use Cases:
-Text based menues from mods
-additional debug output within game
-setting/reviewing configuration parameters currently active

[sfan5]

+4

[robin]

There is already kahrls chatconsole. Maybe its can be extended to allow such actions?