Reorganize emoji data parsing.
Reorganize emoji data parsing.

Also adds names of proposed single emoji from the test data file.

dougfelt/nototools,dougfelt/nototools,googlei18n/nototools,anthrotype/nototools,googlei18n/nototools,anthrotype/nototools,moyogo/nototools,googlefonts/nototools,dougfelt/nototools,googlefonts/nototools,moyogo/nototools,googlefonts/nototools,anthrotype/nototools,googlefonts/nototools,googlefonts/nototools,googlei18n/nototools,moyogo/nototools