Please make script to import following csv to Customer model

City,Name,Website URL,Email
"Tokyo","teamLab Planets TOKYO","http://www.teamlab.art/e/planets/","null"
"Tokyo","Tokyo National Museum","http://www.tnm.jp/","null"
"Tokyo","Nezu Museum","http://www.nezu-muse.or.jp/","null"

- Name should be unique.
- Also if there are same email address skip the row.

Create new branch features/csvimport and commit when you finished