- add test of a double 32 and of composite object containing matrices and...

- add test of a double 32 and of composite object containing matrices and vectors. test both the double and Double32_t cases using CINT and optionally reflex 
- update Makefile to generate the CInt and reflex dictionary when the env USE_REFLEX is set. gccxml must be available in the path to use the reflex dictionary
(root must be configured with  ./configure --with-gccxml=$GCCXML_PATH )
- add linkdef and xml needed files


git-svn-id: http://root.cern.ch/svn/root/trunk@21070 27541ba8-7e3a-0410-8455-c3a389f83636