Revised update logic for inline components

* PipingRules no longer have separate code for path legs with offsets
* Overlapping fixed length components are forced to be separate, as long
as there is available space
* Using more stable calculation for turn component orientations (reusing
path leg direction vector)
* Error messages of overlapping inline components

gitlab #14
gitlab #59

Change-Id: I85e754ffb6dab37ca7b7ae8e5f28842fbf095a11