Add render system

ecs/physics_system.odin

@@ -1,27 +1,9 @@
 package ecs 
 
-Vec3 :: distinct [3]f32
-
-Gravity :: struct {
-    force: Vec3 
-}
-
-RigidBody :: struct {
-    velocity: Vec3,
-    acceleration: Vec3,
-}
-
-Transform :: struct {
-    position: Vec3,
-    rotation: Vec3,
-    scale: Vec3,
-}
-
 PhysicsSystem :: struct {
    using base: SystemBase,
 }
 
-
 physics_system_update :: proc(physics_system: ^PhysicsSystem, coordinator: ^Coordinator, dt: f32) {
     for entity in physics_system.entities {
         rigid_body := coordinator_get_component(RigidBody, coordinator, entity)