Ai vs ai rhh

[DizzyEggg]

Allows for a 1vs1 or 2vs2 battle with both sides controlled by the AI.

Sample script to use in the debug.inc file.
ai_vs_ai_battle TRAINER_JUAN_3, TRAINER_WINONA_4
end

Notes:

• I used a flag to allow ai vs ai battles, similarly to how inverse battles are handled atm. Could and probably should be changed in the future.
• Requires improve ai switching with bad moves #3213, otherwise the game may/will softlock
• Improve how AI chooses damaging moves #3199 could be merged before, so AI is a bit smarter in the potential tests, but it's not required
• If player's side loses, the player whites out. Could be easily changed if needed.
• Could be useful for future AI tests once Support AI battle tests #2871 is functional and merged

Examples:

[ghoulslash]

fix conflicts

[DizzyEggg]

Conflicts fixed