prop_portal's starting portal color and Hammer skin are inconsistent

[vrad-exe]

The default Hammer skin for prop_portal is an orange portal, but the default in-game portal color is blue. This has never been an issue for me personally, but could cause problems if someone just placed the entity and assumed it was an orange portal, only to get a blue portal in-game. Rather than make the Hammer skin default to blue, it would probably be better to make the in-game portal default to orange, since those autoportals are generally more common.