[BUG] Bunch of unsafe evals in code

PSA to users: Don't load untrusted input with Sorcar activated.

Sorcar uses the Python `eval` function a lot, and in unsafe ways. Pretty much everything involving arrays uses it, because "arrays" in Sorcar are represented as strings that are `eval`'d when they need to be used, though that's not the usage of eval.

Example: in `socket_base.py`:

```
return self.set(eval("bpy.data.node_groups['" + self.id_data.name + "'].nodes['" + self.node.name + "']." + self.default_prop))
```

This is easily exploitable by altering the node or node tree name.