WASHINGTON — New federal grants will help 10 states test programs to help food stamp recipients find jobs, from using career coaches to quicker training courses to mental health assistance. The grants, announced Friday in Georgia by Agriculture Secretary Tom Vilsack, come as the Republican Congress is exploring ways to cut the program, which cost $74 billion last year — twice its cost in 2008. Some in the GOP have proposed stricter work requirements as a way to do that.