Consolidate json data

[Freyj]

I'm pretty sure there are mistakes in the jsons, whether of grammatical errors or bad copy/paste.
Need to re check every one of them

• srd_races
• srd_classes
• srd_backgrounds
• srd_aberration
• srd_celestial
• srd_cantrips
• srd_lvl_1
• srd_lvl_9

(will add the other jsons when they are added to the code base)

[Freyj]

Also:

• adding a file describing decisions made about data values/styles/etc (like if proficiencies should be plural or singular, caps or no caps)

[Freyj]

Also need to check that all sizes are written in whole words and not with just one letter

[Freyj]

• weapon proficiencies should all be plural
• armor proficiencies should all be singular
• both should be Capitalized Like This, same for skills and tool proficiencies