add directory description

intl/uconv/directory.txt

@@ -0,0 +1,56 @@
+Directory Structure :
+================================
+public  - public header file
+src     - source directory of charset converter manager and utility
+tests   - tests program and application for charset converter 
+
+The following directory are used to put different charset converter 
+
+ucvam    - Armenian charsets
+ucvar    - Arabic charsets
+ucvcn    - Simplified chinese charsets- GB2312, HZ, ISO-2022-CN
+ucvcy    - Cyrillic charsets - ISO-8859-5, CP1251, KOI8-R, KOI8-U, Mac Cyrillic 
+ucvgr    - Greek charsets - ISO-8859-7, CP1253
+ucvhr    - Hebrew charsets 
+ucvja    - Japanese charsets Set 1 - Shift-JIS 
+ucvja2   - Japanese charsets Set 2 - ISO-2022-JP , EUC-JP
+ucvko    - Korean charsets - ISO-2022-KR, EUC-KR
+ucvlatin - Latin charsets - ISO-8859-1,2,3,4,9,14,15, CP1250,1252,1254, 
+                            Mac Roman, Central European, Romanian, Icelandic, 
+                            etc
+ucvth    - Thai charsets
+ucvtw    - Traditional Chinese charsets Set 1 - Big5
+ucvtw2   - Traditional Chinese charsets Set 2 - EUC-TW, ISO-2022-CN,  
+ucvutf   - UTF-8, UTF-7
+ucvvt    - Vietnamese charsets
+
+The following directory are obsolete and should not be used:
+
+ufromam
+ufromar
+ufromcn
+ufromcy
+ufromgr
+ufromhr
+ufromja
+ufromja2
+ufromko
+ufroml
+ufromtw
+ufromtw2
+ufromutf
+ufromvt
+utoam
+utoar
+utocn
+utocy
+utogr
+utohr
+utoja
+utoja2
+utoko
+utol
+utotw
+utotw2
+utoutf
+utovt