Define MACCS 166 Bit 44 definition - see http://www.dalkescientific.com/writings/diary/archive/2014/10/17/maccs_key_44.html

Change-Id: If22edf2444ff6be0103c9130ebe04eafb88dbb3b
Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>