(Medicaid case focuses on definition of "estate" under state law for purposes of Medicaid lien; married couple owned home in tenants-by-entirety; husband resided in nursing home and received Medicaid benefits; upon wife's subsequent death, state placed lien on marital home to recover Medicaid benefits paid to pre-deceased husband; estate argued that definition of "estate" did not include tenancy-by-entirety property for purposes of Medicaid recovery; court noted that state had adopted definition of "estate" that included non-probate assets; court upheld validity of lien on basis that definition of "estate" contained in Wyo. Stat. Ann. 42-4-206 was expansive and reached any type of non-probate survivorship interest).