AI remembers Party mons

[DizzyEggg]

As per title, AI now stores information on all the party members.
Right now it's just basic functionality. AI remembers ability, moves and item used, so if the player switches pokemon out and in, AI won't forget, that for example, player's Lanturn actually had Water Absorb and not Volt Absorb.

Once improved, this could make it easier to create more complex strategies for using moves/switching.

Here's a screenshot from the debug men

u

[AsparagusEduardo]

Fixed conflicts from changing base to master, but needs to change the icon for SPECIES_NONE in gMonIconTable to gMonIcon_QuestionMark.

[ghoulslash]

As discussed on discord, it may be beneficial to have another field in gBattleStruct or elsewhere, abilityOverwrite or similar, that stores abilities that overwrite existing battler's and do not overwrite the AI_PARTY data in case the player switches out/in again. This would be used in instances of Skill Swap, Role Play, Simple Beam, etc. AI_GetAbility would then read the ability from here over any other field.