Added evmod_assets and started using it for scripts

Signed-off-by: Robear Selwans <robear.selwans@outlook.com>

res/scripts/Scene0/player.lua

@@ -0,0 +1,22 @@
+this.on_collisionenter = function(other)
+  other.position = other.position + Vec3:new(3.2, 0, 0)
+end
+
+this.on_update = function ()
+  rb = this:getComponent(Rigidbody)
+  if Input.getKeyDown(Input.KeyCode.Space) then
+    rb:addForce(Vec3:new(0, 100, 0))
+  end
+  if Input.getKeyDown(Input.KeyCode.D) then
+    rb:addForce(Vec3:new(10, 0, 0))
+  end
+  if Input.getKeyDown(Input.KeyCode.A) then
+    rb:addForce(Vec3:new(-10, 0, 0))
+  end
+  if Input.getKeyDown(Input.KeyCode.W) then
+    rb:addForce(Vec3:new(0, 0, -10))
+  end
+  if Input.getKeyDown(Input.KeyCode.S) then
+    rb:addForce(Vec3:new(0, 0, 10))
+  end
+end