Two bugfixes in MMFF code

- Added the std::fstream::binary flag in testMMFFForceField.cpp
  whose absence might cause intermittent problem in parsing the
  logs on Windows due to tellg/seekg not correctly handling CR/LF
- Fixed the code for assigning the HOCN MMFF94 atom type
  (thanks to Toby Wright for reporting this)
- Added a missing copyright notice in testMMFFForceField.h
- Removed a misplaced copyright notice in testMMFFForceField.cpp
  originated from copy-pasting from other MMFF files