[Feature Request] Please enable orthogonal anchors for junctions

[rojoweko]

Please enable orthogonal anchors for junctions, because this would improve the looks of relationships using junctions. I can provide a simple patch if necessary.

Thanks in advance!

[jbsarrodie]

Well, in fact that's not that simple. If we enable orthogonal anchor it will look really bad (I know because it used to be enable in first 4.x versions of Archi).

The real issue is that as a junction is small, connection must be aligned with center, so the real solution is to make sure that we can easily position a junction with its center aligned with the grid.

See #432