Move non-public headers shared by multiple modules into res/.

config/Makefile.depend

core/base/inc/TStorage.h

core/base/src/TStorage.cxx

core/clib/CMakeLists.txt

core/clib/Module.mk

core/clib/res/Demangle.h

core/clib/res/mmalloc.h

core/clib/res/mmconfig.h

core/clib/res/mmprivate.h

core/meta/src/TClass.cxx

core/meta/src/TStreamerElement.cxx

core/newdelete/CMakeLists.txt

core/newdelete/Module.mk

core/newdelete/src/NewDelete.cxx

core/rint/src/TRint.cxx

core/unix/CMakeLists.txt

core/unix/Module.mk

io/io/CMakeLists.txt

io/io/Module.mk

io/io/inc/TMapFile.h