Build error on std::max under Windows

[ChrisSchulte]

Build of daeElements.cpp crashes due to lack of "#include <algorithm>".
The build didn't crash before because this include was indirectly included through boost, using this path:
src/dae/daeElement.cpp
include/dae/daeDatabase.h
include/dae.h
boost/filesystem/convenience.hpp
boost/filesystem/operations.hpp
boost/filesystem/path.hpp
algorithm
Problem is that between boost 1.76 and 1.77 this include in path.hpp has been suppressed. Adding it in daeElements.cpp corrects the problem.