Add new library files and adjust CMakeLists

CMakeLists.txt

include/osqp_folder/LICENSE

include/osqp_folder/include/auxil.h

include/osqp_folder/include/constants.h

include/osqp_folder/include/cs.h

include/osqp_folder/include/ctrlc.h

include/osqp_folder/include/error.h

include/osqp_folder/include/glob_opts.h

include/osqp_folder/include/kkt.h

include/osqp_folder/include/lin_alg.h

include/osqp_folder/include/lin_sys.h

include/osqp_folder/include/osqp.h

include/osqp_folder/include/osqp_configure.h

include/osqp_folder/include/polish.h

include/osqp_folder/include/proj.h

include/osqp_folder/include/scaling.h

include/osqp_folder/include/types.h

include/osqp_folder/include/util.h

include/osqp_folder/lib/libosqp.a

include/osqp_folder/lib/libosqp.so