ACCRA HEARTS OF OAK SPORTING CLUB v. GHANA FOOTBALL ASSOCIATION Practice and procedure—Cause of action—Accrual—Plaintiff-football club vested with right to play matches at Accra Sports Stadium—Whether plaintiff entitled to commence proceedings to protect right—Plaintiff receiving portion of gate proceeds from matches played—Whether plaintiff has proprietary interest in gate proceeds—When licence to use stadium revocable—Sports Decree, 1976 (SMCD 54)