aligator → include Relation

File in gar/include/aligator	Includes file in include
gar / blk-matrix.hpp	aligator / math.hpp
gar / block-tridiagonal.hpp	aligator / eigen-macros.hpp
gar / lqr-problem.hpp	aligator / math.hpp
gar / riccati-base.hpp	aligator / math.hpp