Change to output in priority order.

Change to output in priority order.

ex)
The current character(0x2665) is emoji script.
'UIFont' and 'EMOJI' font have '0x2665' unicode.
The priority of font is 'UIFont' -> 'EMOJI'.
The now behavior is that we find and output glyphs in EMOJI fonts. because the current character is an emoji script.
However, we want to be output from a high priority 'UIFont'.
so modified it.

and If you want to print emoji fonts, you can add variation unicode.
0x2665+variation unicode = at 'EMOJI' font file
The logic to check variation unicode will be added later.

Change-Id: Id5b54a75280d1678874665a42291facdbce72042