Fixing broken specs

The clever && was not doing what I thought it would have done. So
I am instead breaking things apart. I am keeping this as one test
because I don't want all the DB interactions
Breaking down tests that were not running
Adding RepositoryHelpers
Removing duplication in repository creation
Teasing out TestRepository reusage
Replacing repository_class with instance
Reworking repository specs

Including a test_repository
Using attr_reader instead of 3 line method
Adding specificity on feature type
Adding AccountPlaceholder model
Adding switch for IDENTIFIER_TYPE
Adding CreateOrcidAccountPlaceholderForm
Adding specs for AccountPlaceholder
Adding rspec-given

I like the syntax and the `And` declaration
Adding ability submit an orcid placeholder
Merge pull request #29 from ndlib/adding-account-placeholder

Adding account placeholder