getattr weirdness is now contained

[LazyDope]

Summary

The interpreter silently getting items when you asked for an attribute was sorta weird, so now it's an inherent part of SafeDict's getattr method instead. This quirk was undocumented already, so I'm not really sure where it should be documented now.

Checklist

PR Type

• [ ] This PR is a code change that implements a feature request.
• [x] This PR fixes an issue.
• [ ] This PR adds a new feature that is not an open feature request.
• [ ] This PR is not a code change (e.g. documentation, README, ...)

  Other

• [x] This PR is a breaking change (e.g. methods or parameters removed/renamed)
• [x] If code changes were made then they have been tested.
• [ ] I have updated the documentation to reflect the changes.

[codecov[bot]]

Codecov Report

Base: 98.67% // Head: 98.53% // Decreases project coverage by -0.13% :warning:

Coverage data is based on head (b01086e) compared to base (557cf64). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #25 +/- ## ========================================== - Coverage 98.67% 98.53% -0.14% ========================================== Files 8 6 -2 Lines 1130 1094 -36 ========================================== - Hits 1115 1078 -37 - Misses 15 16 +1 ``` | [Impacted Files](https://codecov.io/gh/avrae/draconic/pull/25?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae) | Coverage Δ | | |---|---|---| | [draconic/interpreter.py](https://codecov.io/gh/avrae/draconic/pull/25/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae#diff-ZHJhY29uaWMvaW50ZXJwcmV0ZXIucHk=) | `98.40% <100.00%> (-0.17%)` | :arrow_down: | | [draconic/types.py](https://codecov.io/gh/avrae/draconic/pull/25/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae#diff-ZHJhY29uaWMvdHlwZXMucHk=) | `98.37% <100.00%> (+0.03%)` | :arrow_up: | | [draconic/utils.py](https://codecov.io/gh/avrae/draconic/pull/25/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae#diff-ZHJhY29uaWMvdXRpbHMucHk=) | | | | [draconic/\_\_init\_\_.py](https://codecov.io/gh/avrae/draconic/pull/25/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae#diff-ZHJhY29uaWMvX19pbml0X18ucHk=) | | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=avrae)

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