ANKARA, Feb 19 (Reuters) - Turkey has hired a Washington-based law firm to lobby for its readmission to the U.S.F-35 fighter jet program after it was suspended over its purchase of Russian air defenses, a contract filed with the U.S. Department of Justice showed. Ankara had ordered more than 100 stealth fighters and has been making parts for their production, but was removed from the program in 2019 after...