NPCs Learn Skills and Spells

Intro

This mod is a continuation of my earlier idea of "natural" perks distribution in Adamant with Vanilla Perks, but this time it covers both skills and spells.

It was limited by SPID 5, but now with SPID 6 it can be implemented to its full potential.

Overview

NPCs Learn Skills and Spells distributes perks and spells in a way that simulates natural learning process for NPCs.

The main idea is that NPCs who are invested into certain skills will focus on perks and spells from these skills as well as pursuit advanced knowledge.

Here are some examples that better convey the idea:

• []Warriors prioritize One-Handed and use Archery as a secondary skill, so it would be natural for them to get basic perks "as soon as they can" and reach higher perks in One-Handed while still getting a few lower perks in Archery to keep up with their level.
  • []On the other hand, Scouts solely rely on their Archery skill with no interest in One-Handed. This would mean that Scouts won't be getting any One-Handed perks, but rather grab as many Archery perks as they can. Thus, Scouts always will have more Archery perks, including higher level perks, than Warriors.
    • []And for Mages this also extends to Spells, so for example, Destruction Mages will be learning primarily Destruction Skill and corresponding Spells, as such they'll always have a variety of destruction magic and be good at it.

      To fully experience NPCs Learn Skills and Spells you should have SPID 6 or greater.

      This will enable the actual learning for NPCs as they level up with you.

      If you haven't updated yet, I strongly advise you to do so :)

      Details

      To make this happen we need to figure out what NPCs are willing to learn and what they're capable of learning.

      NPCs Predisposition (a.k.a. "willing to learn")

      The first step here is to determine what an NPC would like to learn. Luckily, the game already provides that information in form of Skill Weights. These Weights basically tell us what are NPC's favorite skills and what they're good at... So I hit Google Sheets :)

      After some time there I analyzed all Skill Weights for all NPCs and built a fancy spreadsheet. Then, using this data for each skill I labeled each NPC with one of four tiers (that you'll find familiar):

      [] Apprentice [