Big 12 Conference university presidents and chancellors voted unanimously on Tuesday to approve a potentially historic settlement in the landmark House v. NCAA case, marking the next step toward college sports green-lighting an industry-shifting revenue-sharing model. Yahoo Sports was the first to report the news. Each power conference is expected to vote on the settlement over the next few days, in anticipation of the NCAA’s Board of Governors potentially approving the agreement later this week. Attorneys for plaintiffs have set a hard deadline of Thursday for defendants – the NCAA and power …