The party of Mexico’s president-elect submitted legislation Thursday that would legalize marijuana possession, public use, growing and sales. Sen. Olga Sanchez Cordero presented the measure, saying that everyone should have “the right to carry up to 30 grams (one ounce) of cannabis.” People could carry more than an ounce if they requested a permit to do so under the proposal. “From the point of view of negative effects, there is no reason why mar…