Generic 'workers'

This marks the release of basic entities which will construct buildings (each floor requires one stone + one wood). They will distribute the work using URTSBuildingSubsystem to 'claim' floors in a building. They also use Smart Objects to prevent fighting over resources.

Other notable milestones

• Entity Visualization using Instanced Static Meshes and Vertex Animation
• Entity Selection to view the worker's current inventory

MassAITesting-GatherAI2.mp4