* gnu/gcj/convert/Input_UnicodeBig.java: New class..
* gnu/gcj/convert/Input_UnicodeLittle.java: New class.
* Makefile.am: Update accordingly.
* gnu/gcj/convert/IOConverter.java: Define "utf-16le" and "utf16be"
as aliases for UnicodeLittle and UnicodeBig.
From-SVN: r79723