Elsa Keslassy International CorrespondentTaleseed, a Paris-based outfit launched over a year ago by a trio of experienced French media executives, is developing “Mousquetaires,” a contemporary series inspired by Alexandre Dumas’ classic “The Three Musketeers.”The banner, which is headquartered in the Parisian start-up campus Station F, was founded by Valérie Billaut, Stéphane Cadoch and Hugues Laigneau.