Move OptionRow to a separate file

Don't init all BitmapText objects for long rows.  Calculate the row width, then init the text.

stepmania/src/OptionRow.cpp

@@ -0,0 +1,41 @@
+#include "global.h"
+#include "OptionRow.h"
+#include "RageUtil.h"
+
+OptionRow::OptionRow()
+{
+}
+
+OptionRow::~OptionRow()
+{
+	for( unsigned i = 0; i < m_textItems.size(); ++i )
+		SAFE_DELETE( m_textItems[i] );
+	FOREACH_PlayerNumber( p )
+		for( unsigned i = 0; i < m_Underline[p].size(); ++i )
+			SAFE_DELETE( m_Underline[p][i] );
+}
+
+/*
+ * (c) 2001-2004 Chris Danford
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */