Adding scalar whose name lenght greater than 32 causes error,

[daviddanan]

Describe the bug
Hello, i am trying to use plaid to handle mesh-based dataset within my company and i encountered an obscure bug. After i narrowed it down, i find out the issue was related to the length of the scalar name.

Step to Reproduce the issue

from plaid import Sample

sample = Sample()
scalars = [33*"e"]
for scalar in scalars:
    sample.add_scalar(scalar, 0)

print(sample.features.get_global_names())

This gives

828             for path in global_paths:
829                 if "Time" not in path:
--> [830]plaid/src/plaid/containers/features.py:830)                     global_names.append(CGU.getNodeByPath(base_node, path)[0])
831 return global_names

TypeError: 'NoneType' object is not subscriptable

By replacing 33 with 32, the bug disappear.

Expected behavior
Even if such a bug is not trivial to fix, i expect to have a proper error handling to understand why such thing happen. Right now, it was necessary to dig much deeper to understand the root cause.

Desktop (please complete the following information):
I am using the current development version of Plaid with windows 11.