Aspis update V2

Cleaned some textures using new blender 2.81 Feature Denoiser, while also replacing material from High poly to low poly baking to Direct Rendering.

Added some new variants and improved patterns with the help of @Lion and @Stan.

Both @Stan and i handled the baking of the shields.

Including some animations corrections.

Renamed shields from Basic, Elite, Advanced rank to _## following a better naming schema on the textures.

*New:

Added aprons (Aspis shield hellenic faction cloaks).

17 new variants, after this committ cleaning of the old aprons will be done deleting old unuseable dds files and meshes.

Baked using direct render and the new alpha material.

Animated mesh for use with both Hoplite and Swordsman (Relax/Ready variants)

Let me know if there's any issue.

Will continue adding/cleaning the rest of the aspis in the meantime.