Language-neutral tofu of Windows 7 base plane

[Mercury13]

Here are language-neutral characters that are supported by neither of your B/W fonts + Windows 7 standard fonts.

23EB Black up-pointing double triangle 23EC Black down-pointing double triangle 23F0 Alarm clock 2705 White heavy check mark 270A Raised fist 270B Raised hand 2728 Sparkles 274C Cross mark 274E Negative squared cross mark 2753 Black question mark ornament 2754 White question mark ornament 2755 White exclamation mark ornament 2757 Heavy exclamation mark symbol 27B0 Curly loop 27BF Double curly loop

[simoncozens]

Closing in favour of consolidated report #69.