More Manniquin features

A great feature would be the ability to add AI to Mannequin entities, such as passive, neutral, and hostile AI. For example, a hostile mannequin could attack the player, and mannequins could wander around like other entities. This way, Mannequin entities would have more uses other then doing literally nothing.

What would be even better is the ability to modify the AI of any mob, for example, making a sheep hostile with the use of commands.