[Doc] Document the value of UniformFloatHyperparameter should be in [0, 1]

[eddiebergman]

ConfigSpace/ConfigSpace/hyperparameters.pyx

Lines 807 to 824 in 88051eb

	def get_neighbors(
	self,
	value: Any,
	rs: np.random.RandomState,
	number: int = 4,
	transform: bool = False,
	std: float = 0.2
	) -> List[float]:
	neighbors = [] # type: List[float]
	while len(neighbors) < number:
	neighbor = rs.normal(value, std) # type: float
	if neighbor < 0 or neighbor > 1:
	continue
	if transform:
	neighbors.append(self._transform(neighbor))
	else:
	neighbors.append(neighbor)
	return neighbors

I tried with an actual value generated from the HP and it caused obscene numbers

[eddiebergman]

So this was because get_neighbors isn't clear that the value should be in vectorized form. #346 now introduces two methods neighbours_values(value, ...) and neighbours_vectorized(vector, ...) to distinguish between the two. The transform= argument was also removed, i.e. you can call hp.to_value(hp.neighbors_vectorized(1.0, rs)) if you'd like to transform them. This is a re-occuring theme in the refactor where value indicates value space and vector indicates vectorized space, removing the word transform which was ambiguous as to the direction.

The function still exists but is marked as deprecated. Will mark this issue as closed by #346