Clean up JSON keys

[Willowlark]

As the JSON data set was built from the SRD+Bot CSV, there are some keys we don't need. These should be removed to reduce duplication and to make updating easier.

This WILL require checking the scripts (mongo, foundry, srd) to ensure the changes don't break any generators.

Pokedex

Remove

• [x] Unevolved
• [x] HasForm
• [x] Learnset (SRD exclusive line)
• [x] Abilities (For the SRD, combined Abilities string)
• [x] Type (For the SRD, combined types string)
• [x] Height > Deimeters
• [x] Weight > Hectograms
• [x] PrimaryEggGroup (Not Pokerole relevant information)
• [x] SecondaryEggGroup (Not Pokerole relevant information)
• [x] Baby (Flag, not relevant as of Gen 9)

Rename

• [x] Name --> Species
• [x] Sprite --> Image (More accurate)

Learnsets

• [x] Remove Name, redundant with Species
• [x] DexID probably, didn't end up being used for a "join key" type thing.

Items

• [x] TBD