[BUG] model tolerance change does not update features

[lachlangrose]

Describe your issue

When setting the solver tolerance using model.tol, this will only apply to the feature if it is created after the value has been set.

Add a class watch the model default parameters and to update the features associated with the model.

Minimal reproducing code example

from LoopStructural.datasets import load_claudius
from LoopStructural import GeologicalModel

data, bb=load_claudius()
model=GeologicalModel(bb[0,:],bb[1,:])
model.data = data
model.create_and_add_foliation('strati')
model.tol = 1e-2
model.update()
model['strati'].builder._build_arguments

Error message

No response