Optimisation

• don't std::move function returns
• use const where possible
• pass by reference where possible
• cleanup superdeimos:
  • add dnf install spdlog-devel
  • shorten environment variables for centos 7 (and add newline)
  • update phobos.conf: the default family has to be added to [store], not [lrs]
  • update phobos install headers (add admin because it does exist and add common, remove them from the noinst_HEADERS)
  • add EXPORT_COMPILE_COMMANDS=ON to deimos cmake command
• .hh for headers
• don't just close file descriptors but redirect to a file and set Phobos' log level
• add log level to config files