pyntcloud.get_filter prints to the console.

[justinmcgrath]

Describe the bug Calling get_filter() on a pyntcloud object causes things to be printed to the console. Functions should not print to the console, as then it is difficult for the user to control what is displayed.

To Reproduce

import numpy as np
from pyntcloud import PyntCloud
import pandas as pd

a = np.array([[1,2,3],
              [1.1,1.9,3.2],
              [0.9,2.1,2.8]])

pc = PyntCloud(pd.DataFrame(a, columns=["x", "y", "z"]))
kdtree = pc.add_structure("kdtree")
sor_filter = pc.get_filter('SOR', kdtree_id=kdtree, k=6, z_max=1)

Expected behavior If there is no problem, nothing should be printed. Relevant information should be returned and the user chooses what to print.

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 10
• Version: 0.1.6

Additional context Add any other context about the problem here.