Overhaul of variants

Complete overall of variants based on the 印刷標準字体 (表外漢字表)
https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kakuki/22/tosin03/index.html

All characters that are either a 簡易慣用字体 or have the 旧字 as a 印刷標準字体 and have the 新字 within JIS1 have been selected.
In addition, characters that are both alternate of one another and are both 人名用漢字 (亙,亘-凜,凛) are included alongside design variations within JIS1 as stated by the 表外漢字字体表 (𠮟,叱-吞,呑-靱,靭-﨟,臈)

Characters removed:
姸	妍
拋	抛
筓	笄
腁	胼
鷽	鴬

data/entries/variant_kanji.csv

@@ -1,47 +1,65 @@
+亙,亘
 俠,侠
 俱,倶
 儘,侭
 凜,凛
 剝,剥
-𠮟,叱
 吞,呑
 啞,唖
 噓,嘘
 嚙,噛
 囊,嚢
 塡,填
-姸,妍
+壺,壷
 屛,屏
 屢,屡
-拋,抛
+幷,并
+彎,弯
 搔,掻
 摑,掴
 攪,撹
+曾,曽
+枡,桝
+檜,桧
+檮,梼
 潑,溌
+濤,涛
+濾,沪
 瀆,涜
+灌,潅
 焰,焔
+瘦,痩
+禰,祢
 禱,祷
-竜,龍
+穎,頴
-筓,笄
+竈,竃
 簞,箪
 籠,篭
 繡,繍
 繫,繋
-腁,胼
 萊,莱
+蔣,蒋
 藪,薮
+蘆,芦
 蟬,蝉
+蠅,蝿
 蠟,蝋
+蠣,蛎
+賤,賎
 軀,躯
+邇,迩
 醬,醤
 醱,醗
+靱,靭
 頰,頬
+頸,頚
 顚,顛
 驒,騨
+鰺,鯵
 鶯,鴬
 鷗,鴎
-鷽,鴬
 鹼,鹸
 麴,麹
-靭,靱
+麵,麺
-靱,靭
+﨟,臈
+𠮟,叱