Add unicode source.
Change-Id: I5c44414dd3abe387599358e1e10134c36d03438c
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+NOTE: Code downloaded from http://www.unicode.org
+
+The accompanying C source code file "ConvertUTF.c" and the associated header
+file "ConvertUTF.h" provide for conversion between various transformation
+formats of Unicode characters. The following conversions are supported:
+
+ UTF-32 to UTF-16
+ UTF-32 to UTF-8
+ UTF-16 to UTF-32
+ UTF-16 to UTF-8
+ UTF-8 to UTF-16
+ UTF-8 to UTF-32
+
+In addition, there is a test harness which runs various tests.
+
+The files "CVTUTF7.C" and "CVTUTF7.H" are for archival and historical purposes
+only. They have not been updated to Unicode 3.0 or later and should be
+considered obsolescent. "CVTUTF7.C" contains two functions that can convert
+between UCS2 (i.e., the BMP characters only) and UTF-7. Surrogates are
+not supported, the code has not been tested, and should be considered
+unsuitable for general purpose use.
+
+Please submit any bug reports about these programs here:
+
+ http://www.unicode.org/unicode/reporting.html
+
+Version 1.0: initial version.
+
+Version 1.1: corrected some minor problems; added stricter checks.
+
+Version 1.2: corrected switch statements associated with "extraBytesToRead"
+ in 4 & 5 byte cases, in functions for conversion from UTF8.
+ Note: formally, the 4 & 5 byte cases are illegal in the latest
+ UTF8, but the table and this code has always catered for those,
+ cases since at one time they were legal.
+
+Version 1.3: Updated UTF-8 legality check;
+ updated to use UNI_MAX_LEGAL_UTF32 in UTF-32 conversions
+ Updated UTF-8 legality tests in harness.c
+
+
+Last update: October 19, 2004
+
+