Roddy Piper Would Be 'Damn Proud' of Rousey, Wrestler's Kids Say

[[tmz:video id="0_sl75cxnx"]] Roddy Piper's kids were downright emotional when talking about how much Ronda Rousey means to their family ... and what a special moment it was to see her wearing the WWE legend's jacket. TMZ Sports spoke with Colt…