Obsfile path with spaces is not supported

[veenstrajelmer]

Describe the bug
When there is a space in an obsfile path, HYDROLIB-core raises a ValidationError since it only reads the path up to the space:

ValidationError: 4 validation errors for Output
obsfile -> 0
  File: `C:\DATA\dfm_tools\dfm_tools\Vietnam_model_forissue\Vietnam` not found, skipped parsing. (type=value_error)
obsfile -> 0

The path of the obsfile is C:\DATA\dfm_tools\tests\examples_workinprogress\Vietnam _model_forissue\Vietnam_obs.xyn

To Reproduce

# import packages
import os
import hydrolib.core.dflowfm as hcdfm
import pandas as pd
import numpy as np

# user input
model_name = 'Vietnam'
dir_output = os.path.abspath(f'./{model_name} _model_forissue') #TODO: space in path will raise ValidationError
os.makedirs(dir_output, exist_ok=True)

# generate obspoints
xpts = np.array([106.52500191, 105.87500194, 106.52500192, 106.47500189])
ypts = np.array([18.09475411, 18.46123843, 18.23233872, 17.9569871])
npts = np.array(['x106p53_y18p09', 'x105p88_y18p46', 'x106p53_y18p23', 'x106p48_y17p96'])
obs_pd = pd.DataFrame(dict(x=xpts,y=ypts,name=npts))

# save obsfile
file_obs = os.path.join(dir_output, f'{model_name}_obs.xyn')
obs_pd.to_csv(file_obs, sep=' ', header=False, index=False, float_format='%.6f')

# initialize mdu file and update settings
mdu = hcdfm.FMModel()
mdu.output.obsfile = file_obs

Expected behavior
If a space is included, it will still work. Just like for files like ext files and such, since it works here.

Version info (please complete the following information):

• OS: Windows
• Version: 0.5.2