Fix 3D_Model example wireframe interfering with mirror;

examples/3D_Model/main.lua

@@ -2,9 +2,10 @@
 
 function lovr.load()
   model = lovr.graphics.newModel('suzanne.obj')
-  lovr.graphics.setWireframe(true)
 end
 
 function lovr.draw()
+  lovr.graphics.setWireframe(true)
   model:draw(0, 1.7, -3, 1, lovr.timer.getTime() * .25)
+  lovr.graphics.setWireframe(false)
 end