wip/tilix 1.9.3 NetBSD

Tilix is a tiling terminal emulator which uses the VTE GTK+ 3 widget

* Layout terminals in any fashion by splitting them horizontally or vertically * Terminals can be re-arranged using drag and drop both within and between windows * Terminals can be detached into a new window via drag and drop * Input can be synchronized between terminals so commands typed in one terminal are replicated to the others * The grouping of terminals can be saved and loaded from disk * Terminals support custom titles * Color schemes are stored in files and custom color schemes can be created by simply creating a new file * Transparent background