input: Write a python function to check if a list contains only zeroes.
  assert check_all_zeroes([0, 0, 0, 0, 0, 0, 0, 0, 0, 0])==True
  assert check_all_zeroes([0, 1, 0, 0, 0, 0, 0, 0, 0, 0])==False
  assert check_all_zeroes([0, 0, 0, 0, 0])==True
output: def check_all_zeroes(lst):
      return all(x == 0 for x in lst)