added DataMan into utilities
Created by: JasonRuonanWang
Added DataMan into utilities
Changes:
- Added DataMan.h and DataManager.h in include/utilities/realtime/dataman/DataMan.h
- Added DataManager.cpp in source/utilities/realtime/dataman/DataManager.cpp
- Changed DataManReader and DataManWriter engine to use adios::realtime::DataManager
- Changed source/CMakeLists.txt to compile DataMan related files by default.
- Changed ADIOS.cpp to remove ADIOS_HAVE_DATAMAN related stuff
Still need to do:
- Remove ADIOS_HAVE_DATAMAN completely from all cmake files
- Compile hello_datamanWriter and hello_datamanReader by default