Low-Poly Eevee reinforced

This is a quick remix of the great low-poly eevee by @flowalistik to address two common issues mentioned in the comments.

- Ears easily break,
- front legs easily break.

These issues are more severe, when you want to downscale the model.

Here, the ears are separate parts, and require assembly. No glue needed normally. When printed with a decently adjusted printer (and scaled a bit smaller than the body), it should be possible to insert the ears into their sockets with two fingers and some moderate force.
As separate parts, the advantage is, that we can print them flat, which makes them almost unbreakable (at least, when done in PETG).

The lower part of the front legs are connected with a 1mm wide and 3mm high piece with the body. While not exactly anatomically correct, this helps keeping the legs in place during print, and also later, when playing. The extra geometry is decently hidden.

The ears were separated in FreeCAD with the Split Apart function of the Parts