(ids-insert-chars-including-components*): Use `copy-list' instead of

(ids-insert-chars-including-components*): Use `copy-list' instead of
`copy-tree' to avoid list corruption by function `sort'.
(ids-insert-chars-including-components): Likewise.
(ideo-comp-tree-adjoin): New function.
(ideographic-chars-to-is-a-tree): New implementation; use
`ideo-comp-tree-adjoin'.
(ids-find-chars-including-ids): Use `copy-list' instead of `copy-tree'
to avoid list corruption by function `sort'.