alias snow_monkey -> japanese_macaque

BUR #16194 has been approved by @nonamethanks.

create alias snow_monkey -> japanese_macaque

Quoting Wikipedia:

The Japanese macaque (Macaca fuscata), also known as the snow monkey...

Example: post #3242070 has both tags

As long as people don't start using it for fantasy snow monkeys...

The bulk update request #16194 (forum #238327) has been approved by @nonamethanks.