Add the following methods:
add_child_row_location(self, parent_table: Union[Self, str], **kwargs) -> Optional[str]
add_child_row_location_rules(self) -> Iterable[str]
add_child_row_location_rule(self, child_table: Union[Self, str]) -> Optional[str]
These are meant to be called from different pieces of code:
- add_child_row_location() is meant to be used where the parent is
rendered, to display a link to adding another child
- add_child_row_location_rules() and add_child_row_location_rule()
are meant to be invoked where processing is going to be done, i.e.
likely code rendering child row content
Signed-off-by: Jan Lindemann <jan@janware.com>
