[meta-issue] Shortcomings of the current db model

[edcrfv0]

Gathering here issues related to shortcoming of the current data structure.

Versioning Type Efficacy and Pokémon Types #213
Pokémon "shape" data not accurate across generations, versions, forms. #225
Zygarde 10% Forme with Aura Break is missing #231
Refactor pokemon_moves #237
Dataloss in tracking evolution forms #243
Encounter schema redesign #277
Adding past Pokemon type data? #288
Missing past flinch chances #302
Update Aegislash stats #311
Different genus according to the form #317
Different description (prose) according to the form #318