Modular Entity Attachment System

[erematorg]

Create a limb attachment system/plugin for instantiating and attaching limbs to a body. This system should be designed to be modular, allowing easy attachment of different types of limbs like legs, arms, tails, etc., and ensuring dynamic interaction through physics-driven movement.

• Define interfaces for body parts and entity customization.
• Create documentation for the modular system architecture.
• Define sockets on Body as empty nodes.
• Implement LimbBase class to handle basic limb behaviors and attachment.
• Create specialized limb classes (e.g., Leg, Arm) extending LimbBase.
• Add physics joints between the Body and limbs to allow for dynamic, physics-driven movement.