made smesolve take optional d1, d2 and rhs functions for customized sme
made smesolve take optional d1, d2 and rhs functions for customized sme

zasdfgbnm/qutip,cgranade/qutip,zasdfgbnm/qutip,qutip/qutip,anubhavvardhan/qutip,qutip/qutip,cgranade/qutip,anubhavvardhan/qutip