REWORK: Reorganize entity naming conventions, class structures, and species organization

Nobody has claimed this yet.

Related to #772.

Over the nearly 4 years of work put into the mod, the understanding of the world that Changed presents has been evolving. This issue presents the opportunity to fix naming errors and to improve species organization.

- [ ] Rename "Gas Wolf" (and other related terms) to "Wolf".

This entity name was derived from calling the resulting transfur from breathing the transfurring gas an "Aerosol Latex Wolf." This was changed to "gas wolf" in the middle of 2024. Since then, we have added the "Gas Wolf Pup," whose origin of transfur is completely unrelated to its name (from the fennec tf). Discarding the term "Gas" from these names will also remove the origin of transfur from the name, allowing its presence to make sense in more contexts.

- [ ] Rename entities that resemble their anthro counterpart to "Anthro" **AND/OR** rename entities that resemble their feral counterpart to "Feral."

Deciding which shape of the entity gets the name will make naming entities more consistent, and more descriptive. For example: should the name "Latex Crow" go to the anthro (human sized, w/ arms) or feral (bird sized, w/ wings) entity?

- [ ] Organize entities more strictly to their "species."

What I mean by this broad terminology is to more clearly organize class structures (and therefor behavior inheritance) to better reflect the relationship of one entity to another. For example:

```
Non-latex biological (flesh and blood, probably)
├ "Gas Wolf"
├ "Gas Skunk"
├ "Beifeng"
├ "Dark Dragon"
└ ...
Dark latex
├ "Dark Latex Wolf"
├ "Dark Latex Yufeng"
├ "Phage Latex Wolf"
└ ...
White latex
├ Hivemind white latex
│ ├ "Pure White Latex Wolf"
│ └ "Behemoth"
├ Specialized white latex (has a form suited to their environment)
│ ├ Aquatic
│ │ ├ Shark
│ │ │ ├ "Latex Shark"
│ │ │ ├ "Latex Mermaid Shark"
│ │ │ ├ "Latex Shark Feral"
│ │ │ └ ...
│ │ ├ "Latex Squid Dog"
│ │ ├ "Latex Crocodile"
│ │ └ ...
│ ├ Volcanic (Not actually in the mod yet)
│ │ └ ...
│ ├ "Latex Stiger"
│ ├ "Latex Squirrel"
│ └ ...
├ "White Latex Wolf"
├ "Milk Pudding"
└ ...
Currently not categorized
└ "Pool-toy Wolf" (Maybe a specialization of white latex)
```

No files, tests, or entry points are named. Start by locating the entity classes and reading their current inheritance and naming structure; completion would require agreed naming conventions and a reorganized species/class hierarchy covering the listed entities.

Written by the indexing model from the issue text.