Add more emoji as valid identifiers
Add more emoji as valid identifiers

Added U+2139 (INFORMATION SOURCE), U+2934 (ARROW POINTING RIGHTWARDS
THEN CURVING UPWARDS) and U+2935 (ARROW POINTING RIGHTWARDS THEN
CURVING DOWNWARDS) as valid identifiers, because they have emoji
versions in Apple Color Emoji.

emojicode/emojicode,emojicode/emojicode,emojicode/emojicode,emojicode/emojicode