Fix imHereBecauseOfCrayCompiler bug
Created by: jgphpc
This does not look too good:
grep imHereBecauseOfCrayCompilerO2Bug -r include/*
include/sph/density.hpp: std::vector<T> imHereBecauseOfCrayCompilerO2Bug(4, 10);
include/sph/momentumAndEnergyIAD.hpp: std::vector<T> imHereBecauseOfCrayCompilerO2Bug(4, 10);
include/sph/findNeighbors.hpp: std::vector<T> imHereBecauseOfCrayCompilerO2Bug(4, 10);
include/sph/IAD.hpp: std::vector<T> imHereBecauseOfCrayCompilerO2Bug(4, 10);