Add property to specify min/max-optimal

[NiklasMelton]

We need to add a property to the CVI classes that specifies whether the CVI is min or max-optimal.

[NiklasMelton]

Might also be a good idea to add the bounds. i.e. [0.0, np.inf] or [0.0, 1.0]

[NiklasMelton]

perhaps something like:

from dataclasses import dataclass
import numpy as np
from typing import Literal


@dataclass
class CVIInfo:
    optimality: Literal["min", "max"],
    lower_bound: float
    upper_bound: float


class SomeCVI:
    def __init__(self):
        ...
        self.info = CVIInfo("min", 0.0, np.inf)