Only in ERR/WARN/INFO/DBUG/OGS_FATAL and similar, not in
formatted output like xml files.

The move ctor is not implemented in gcc < 5.

The reinterpret cast seems to more appropriate in context
of writing of binary values to a stream.

Clang format run on near-the-header lines.

Happy New Year

Writes output files to the specified output directory.

changed dropFileExtension() implementation

Calling getFileNameFromPath() for now.

moved functions getFileNameFromPath(), getSuffixFromPath(), copyPathToFileName() and extractPath() from files StringTools.{cpp,h} to files FileTools.{cpp,h}

- remove functions to manipulate file names because they exist in StringTools.h
- move implementations into cpp
- fix type, etc.