Add DB schema
Add rk & password info into user table
Add User Model
Add User Service
Add User routing
add create test factory
微妙な外部キー制約取り除いた
add Test::Fatal for test
Fix Service User tiny bugs
Add require test for C::Root
Add create_dbh in test factory
Add User Service test
Add User Service test
add category info
add category with test
Add Application Model
Add lack of lib
Add Question Model
add Comment Model
Application Service mock