This is some quite technical and redundant code, which largely maps
the configured elements from the Builder-DSL level down into the delegate
builder functors. For the ''Param Agent Node,'' most of the structure
is already embedded deep into the `ParamWeavingPattern`, by virtue of a
tuple of parameter-functors, which are supplied to the builder-API
as a `ParamBuildSpec` (which in fact is in itself a builder and will be
used on a higher level to fill in suitable parameter-functors)
This changeset is assumed to complete the definition of a builder and
weaving pattern for a ''Param Agent Scheme'' — yet only the tests to be
elaborated next will show the extent to which this is true....