Adding runestone crafting and basic anima.

[MistakeNot4892]

Opening mainly for diff/to keep myself from forgetting about it.

• Adds runestones that can be crafted from anima blanks and cracked in-hand to give a temporary spell (something like scrolls from D&D).

TODO

• Add some actual basic spells for each anima polarity to populate the example tables.
• Add some system for keeping track of what spells are available to someone (Spellbook? Notes in memory?)
• Add some way to actually get crystalline anima.

[MistakeNot4892]

Went ahead and merged this to avoid having to keep updating it when stuff changes. Will likely not revisit it properly until the reworked abilities system is merged on Neb main.