Move or add trhead unsafety reasons to lines of ATLAS_NOT_THREAD_SAFE

• Move or add the reasons of trhead unsafety to the lines of ATLAS_NOT_THREAD_SAFE or ATLAS_NO_CHECK_FILE_THREAD_SAFETY for easier understanding using LXR and git grep.
  • https://acode-browser1.usatlas.bnl.gov/lxr/search?%21v=head&_filestring=InnerDetector&_string=ATLAS_NOT_THREAD_SAFE
  • https://acode-browser1.usatlas.bnl.gov/lxr/search?%21v=head&_filestring=InnerDetector&_string=ATLAS_NO_CHECK_FILE_THREAD
• Remove ATLAS_NOT_THREAD_SAFE from TRT_BSErrContainerCnv_p1::transToPers and TRT_BSErrContainerCnv_p2::transToPers.
• No result changes are expected.
• https://its.cern.ch/jira/browse/ATLASRECTS-5560