Move core/scripts to build/scripts so that platform can use them.

Source/build/scripts/StaticString.pm

 # Copyright (C) 2013 Google, Inc. All Rights Reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
@@ skipping 29 matching lines @@
         my $hash = Hasher::GenerateHashValue($value);
         push(@result, "    StringImpl* ${name}Impl = StringImpl::createStatic(\"$value\", $length, $hash);\n");
     }
 
     push(@result, "\n");
 
     return join "", @result;
 }
 
 1;