scng.adb (Check_End_Of_Line): Count characters, rather than bytes (makes a difference for wide characters)

2005-09-01  Robert Dewar  <dewar@adacore.com>

	* scng.adb (Check_End_Of_Line): Count characters, rather than bytes
	(makes a difference for wide characters)

	* widechar.adb, widechar.ads:
	Add Wide_Char_Byte_Count feature to count chars vs bytes

From-SVN: r103875