Fixed point pop sum t compat fix#685

wvpm wants to merge 2 commits intorefactor/pop-size-typeOpenVicProject/OpenVic-Simulation:refactor/pop-size-typefrom

fixed_point_pop_sum_t_compat_fixOpenVicProject/OpenVic-Simulation:fixed_point_pop_sum_t_compat_fixCopy head branch name to clipboard