New entities

create new backgrounds, enemies, and bosses.

Everything visual is considered an entitiy by our ECS. Similar steps are requred to add entities of any kind, backgounds, enemies, bosses or projectiles.

each type of entity is only distict by the set of components it uses

Boss components	Enemy components	background components
Health::Component	Health::Component	NOT USED
Damage::Component	Damage::Component	NOT USED
NOT USED	Veclocity::Compotent	Veclocity::Compotent
Position::Component	Position::Component	Position::Component
Animation::Component	Animation::Component	Animation::Component
Hitbox::Component	Hitbox::Component	NOT USED
Team::Component	Team::Component	NOT USED
Armament::Component	Armament::Component	NOT USED
Collision::Component	Collision::Component	NOT USED