ReflexionCity: Edges in the architecture should also use a portal material

[koschke]

If we zoom into a reflexion or shuffle it on the table, the edges are visible outside of the portal.

They should behave as the implementation edges. They need to use a material and shader with portal information.

[Cyclone1337]

It seems as if someone changed something and it broke as a result. When @tinxx implemented the feature, it also worked for the architecture edges. This can also be seen in the feature presentation on Mattermost.