Add some missing headers to ceres.h https://github.com/ceres-solver/ceres-solver/issues/423 Change-Id: I568aeda83b91a4d5a12a3f271078535610c4ad44
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.