Apply a patch to kagome dictionary to properly handle Japanese new era '令和' (REIWA)

[ikawaha]

https://twitter.com/moco_beta_en/status/1117261078612676614?s=20

[ikawaha]

UniDic:

㍻,5969,5969,2588,補助記号,一般,*,*,*,*,,㍻,㍻,,㍻,,記号,*,*,*,*
㍻,4786,4786,4288,名詞,固有名詞,一般,*,*,*,ヘイセイ,平成,㍻,ヘーセー,㍻,ヘーセー,固,*,*,*,*
平成,4786,4786,8205,名詞,固有名詞,一般,*,*,*,ヘイセイ,平成,平成,ヘーセー,平成,ヘーセー,固,*,*,*,*

[ikawaha]

memo: http://ikawaha.hateblo.jp/entry/2019/04/16/174721