Add specs for CreateOrganizationFromArray service class
Move call to CreateOrganizationFromArray#check_columns_in to constructor

- Rename CreateOrganizationFromArray#check_columns_in to CreateOrganizationFromArray#normalize, better name for what's the code is doing
Remove CreateOrganizationFromArray#build_organization argument to use CreateOrganizationFromArray#organization_name
Refactor: OrganizationCreateFromArray

- Rename #check_columns_in to #normalize
- Move call to the constructor
Merge pull request #94 from cored/move-call-create-organization-from-array-check-columns-in-to-constructor

Move call create organization from array check columns in to constructor