がいこつ追加

Signed-off-by: okihara <okihara.masataka@dena.jp>
リファクタ

Signed-off-by: okihara <okihara.masataka@dena.jp>
create Block superclass

Signed-off-by: okihara <okihara.masataka@dena.jp>
リファクタ

Signed-off-by: okihara <okihara.masataka@dena.jp>
リファクタ

Signed-off-by: okihara <okihara.masataka@dena.jp>