Feature: Add prettier support in bizbook-client

[iamsjn]

Maintaining the code format in an open source community reasonably a difficult task. We all want to show our own taste in code, in fact sometimes just because of having different ide can change the code format and in the end result we see huge changes in the code base. To prevent this we need some consistent rule for code format.

https://github.com/prettier/prettier is for saving the life. It's an opinionated code formatter. So definitely bizbook should implement this awesome tool.