evas textblock: support ZWJ, ZWNJ, LRM, RLM in escaped form

Summary:
The patch supports the following escaped string from Evas Textblock.
These unicodes are frequently used.
ZWNJ U+200C - ‌
ZWJ  U+200D - ‍
LRM  U+200E - ‎
RLM  U+200F - ‏
@feature

Test Plan: N/A

Reviewers: raster, cedric, herdsman, jpeg, woohyun

Differential Revision: https://phab.enlightenment.org/D5173

src/lib/evas/canvas/evas_object_textblock.c

@@ -1241,6 +1241,10 @@ static const char escape_strings[] =
 "†\0"   "\xe2\x80\xa0\0"
 "‡\0"   "\xe2\x80\xa1\0"
 "•\0"     "\xe2\x80\xa2\0"
+"‌\0"     "\xe2\x80\x8c\0"
+"‍\0"      "\xe2\x80\x8d\0"
+"‎\0"      "\xe2\x80\x8e\0"
+"‏\0"      "\xe2\x80\x8f\0"
 ;
 
 /**