Bring back building perspective symmetry application

[INSULINt]

It seems as though symmetry is now applied from the perspective of the part now? For example you use to be able to orient a mk2 fuel tank with the top facing the sph exit and place something on the ends of that tank. Now when you try that it doubles up the part you're trying to place at one end of the mk2 tank.

The old method was great for faking center snapping.

illustrates the old method really well!