More monster property scaling guidance in GAME_BALANCE.md

Is your feature request related to a problem? Please describe.

When you are new to creating monsters, you are unfamiliar with all the stats they can have. GAME_BALANCE.md has some excellent guidance with specific and explained values, but I think it needs some updates and additions from someone more familiar with monsters than me.

This way the likelihood of contributors accidentally creating unbalanced stuff will be lower. And to be quite honest, I still do not understand the dodge values /o\

Solution you would like.

I'd like documented guidance for the following:

• Armor
• Day and night vision
• Dodge
• Melee dice stuff
• Aggression and morale
• Move costs of actions
• Damage types and values, we currently only have max damage in that doc

There may be even more to be documented.

Describe alternatives you have considered.

No response

Additional context

No response