Add some representative nodes.

Add some representative nodes.
(U+5421): Apply new conventions for glyph granularity.
(U+356E): Apply new conventions for glyph granularity for components
of ideographic-structure.
(U+35B8): Apply new conventions for glyph granularity.
(CU+55C1): Apply new conventions for glyph granularity for components
of ideographic-structure.
(U-00020ED7): Use `->subsumptive'.
(U+5617): Apply new conventions for glyph granularity.
(U+5618): Apply new conventions for glyph granularity for components
of ideographic-structure.
(UU+5659): Likewise.
(U-00020FD8): Apply new conventions for glyph granularity.
(U+5690): Use `->subsumptive'.