xyz file with initial whitespace on lines is not correctly parsed by XYZmodel

[veenstrajelmer]

Describe the bug
Initial whitespaces on each line in an xyz-file cause validation error:

   37115.2500000  419886.6875000     500.0000000

Reading a file like this, results in an error:

diffusivity_rivzee_v6.xyz -> points -> 1168853 -> x: y:37115.2500000 z:419886.6875000 -> x
  value is not a valid float (type=type_error.float)

x column is seen as y column etc.

To Reproduce

from pathlib import Path
try: #0.3.1 release
    from hydrolib.core.io.xyz.models import XYZModel
except: #main branch and next release #TODO: move to easy imports after https://github.com/Deltares/HYDROLIB-core/issues/410
    from hydrolib.core.io.dflowfm.xyz.models import XYZModel
#file_xyz = r'p:\11205258-006-kpp2020_rmm-g6\C_Work\08_RMM_FMmodel\geometry_j19_NL_6-v2\rmm_vzm_v1p1_initial_water_level.xyz'
file_xyz = r'p:\11206813-006-kpp2021_rmm-2d\C_Work\31_RMM_FMmodel\general\diffusivity_rivzee_v6.xyz'
data_xyz = XYZModel(Path(file_xyz))

Version info (please complete the following information):

• OS: Windows and Spyder
• Version hydrolib main branch