Give API to measure the space that a string occupies
Created to raise support for Console issue #218 that itself is an extension of issue #57
From the issue OP: "Under a certain console/PTY, assume the font family/size is specified, give a string, and return the space (a bit mask of the character matrix?) it would occupy."
Closest implementation is wcwidth and wcswidth as mentioned in Issue on Linux. This API is required for anything involving zero width joiners, as are any scripts involving more complicated rules, or RTL scripts.