Use U+8449 instead of UU+8449.

Use U+8449 instead of UU+8449.
(U-000203D8): Use "⿸侃x" instead of "⿰亻⿳口𫶧x".
(U-000203DA): Use U+6108 instead of UU+6108.
(U-00020D5C): Use U+7F54 instead of UU+7F54.
(U-0002100D): Use U+6108 instead of UU+6108.
(U-0002100E): Use U+5FAE instead of JU+5FAE.
(U-00021095): Use U+84FC instead of CU+84FC.
(U-00021466): Use U+3B05 instead of UU+3B05.
(U-0002189A): Ditto.
(U-000218A8): Use U+8056 instead of UU+8056.
(U-000218AA): Use U+97EE instead of CU+97EE.
(U-00021F6A): Use U+7CFB instead of UU+7CFB.