Ordinaries for different shapes and edge types

There is now code which allows the use of "hand-drawn" ordinaries where the existing code doesn't work nicely with the overall shield shape or with the edge type. To override, create an SVG file containing the appropriate path (only) and place it in a file named:

/ordinaries//{-}.svg

See, for example:

/ordinaries/orle/heater-nowy.svg

(This issue is a placeholder - please list ordinaries that need this to be done as comments on this issue)