Added licenses that should've gone in the previous commit

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35985 a95241bf-73f2-0310-859d-f6bbb57e9c96

data/system/data/licenses/Anti-Grain Geometry

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+Anti-Grain Geometry - Version 2.4
+Copyright (C) 2002-2004 Maxim Shemanarev (McSeem)
+
+Permission to copy, use, modify, sell and distribute this software 
+is granted provided this copyright notice appears in all copies. 
+This software is provided "as is" without express or implied
+warranty, and with no claim as to its suitability for any purpose.

data/system/data/licenses/GPC

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+           http://www.cs.man.ac.uk/aig/staff/alan/software/
+
+Author:    Alan Murta (email: [email protected])
+Version:   2.31
+Date:      4th June 1999
+
+Copyright: (C) 1997-1999, Advanced Interfaces Group,
+           University of Manchester.
+
+           This software is free for non-commercial use. It may be copied,
+           modified, and redistributed provided that this copyright notice
+           is preserved on all copies. The intellectual property rights of
+           the algorithms used reside with the University of Manchester
+           Advanced Interfaces Group.
+
+           You may not use this software, in whole or in part, in support
+           of any commercial product without the express consent of the
+           author.
+
+           There is no warranty or other guarantee of fitness of this
+           software for any purpose. It is provided solely "as is".