[New Hints] 0.6.0.json

[pefontana]

Implement the remaining hints in 0.6.0.json

NewHint#63

assigned:
status: todo

        "from starkware.cairo.common.math_utils import assert_integer",
        "assert_integer(ids.a)",
        "assert_integer(ids.b)",
        "assert (ids.a % PRIME) <= (ids.b % PRIME), \\",
        "    f'a = {ids.a % PRIME} is not less than or equal to b = {ids.b % PRIME}.'"

NewHint#64

assigned:
status: todo

        "ids.a_lsb = ids.a & 1",
        "ids.b_lsb = ids.b & 1"

[jpcenteno]

Assigned this to @fmoletta because #1047