Resolve "Change compiler FLAGS in cmake files"

CMakeLists.txt

catalogue/CreateAdminUserCmdLineArgsTest.cpp

catalogue/CreateSchemaCmdLineArgsTest.cpp

catalogue/DropSchemaCmdLineArgsTest.cpp

catalogue/PollDatabaseCmdLineArgsTest.cpp

catalogue/VerifySchemaCmdLineArgsTest.cpp

common/checksum/ChecksumBlob.cpp

eos_cta/CMakeLists.txt

mediachanger/DismountCmdLineTest.cpp

mediachanger/MountCmdLineTest.cpp

mediachanger/castorrmc/rmc/CMakeLists.txt

objectstore/RootEntry.cpp

scheduler/CMakeLists.txt

tapeserver/castor/tape/tapeserver/SCSI/CMakeLists.txt

tapeserver/castor/tape/tapeserver/daemon/CMakeLists.txt

tapeserver/castor/tape/tapeserver/drive/CMakeLists.txt

tapeserver/castor/tape/tapeserver/drive/DriveGeneric.cpp

tapeserver/castor/tape/tapeserver/file/CMakeLists.txt

tapeserver/castor/tape/tapeserver/file/FileTest.cpp

tapeserver/castor/tape/tapeserver/file/Structures.hpp