Create an Icon or Emblem to represent the Placement concept.
Alluding to an Anchor, a Hook and the Letter "P"
This expands upon an Idea conceived some years ago
and used thus far within architecture and design diagrams
- remove unreferred definitions
- remove redundant style settings
- place bounding box tiles uniformly
- establish a standard stacking order
- introduce a naming scheme for the IDs
The reason for this pedantry is to simplify maintennance,
and to make the actual changes stand out clearly in Git
