Issue Description:

errors on the log and sometimes i find a poketrainer without texture

What happens:

i am getting errors on the log telling that a trainer texture failed to load and sometimes i find poketrainer without texture(black and purple)
https://gist.github.com/jochuan/6a8e6f33b6dcb3ad3ae09393a1a80e2b

What you expected to happen:

i expected them to have normal skins

Steps to reproduce:

1.enter your game
2.look for trainers
3.find one without texture
...

Affected Versions (Do not use "latest"):

• Pokecube Core:2.3.31
• Pokecube Revival (if applicable):2.2.16k
• Pokecube Mobs (if applicable):1.1.17
• Minecraft: 1.8.9
• Forge:1855

Ya, I need to get a texture done for him, or at least make it use a default texture when non is found.

Fixed this, I made it so it has defaults if a trainer type is registered and no texture if given.