Correction for histogram interpolation of Tabular distributions

[pshriwise]

Description

The openmc.stats.Tabular class assumes that the length of the probabilities provided is equal to the length of the table values. This causes errors when one passes N -1 probabilities for N table values in histogram interpolation

because we index into the probabilities as [:-1]. This changes that index based on the size of the table values.

Several warnings have also been added in the Tabular.p property setter to check its length against the size of the table values (if they are set).

Checklist

• I have performed a self-review of my own code
  - [ ] I have run clang-format (version 15) on any C++ source files (if applicable)
• I have followed the style guidelines for Python source files (if applicable)
  - [ ] I have made corresponding changes to the documentation (if applicable)
• I have added tests that prove my fix is effective or that my feature works (if applicable)

[paulromano]

@pshriwise I've updated this branch based on our offline discussion. Namely, now the x and p attributes do not have a setter so that the object cannot be in an invalid state. The warnings were turned into exceptions. However, note that the warning for the size of p and x being the same for histogram interpolation was removed since this is used quite often throughout the nuclear data API, so I didn't want to mess around too much with that. If you're OK with the changes I made, let me know and we can merge (or simply go ahead and hit the merge button yourself).

[pshriwise]

@pshriwise I've updated this branch based on our offline discussion. Namely, now the x and p attributes do not have a setter so that the object cannot be in an invalid state. The warnings were turned into exceptions. However, note that the warning for the size of p and x being the same for histogram interpolation was removed since this is used quite often throughout the nuclear data API, so I didn't want to mess around too much with that. If you're OK with the changes I made, let me know and we can merge (or simply go ahead and hit the merge button yourself).

Thanks for making those updates @paulromano! This fell off my radar after your last review.