Before this change we only matched tables against their file name e.g.

```ruby
create_table :projects_branch_rules_squash_options do
```

Would require a factory stored in:

`spec/factories/projects_branch_rules_squash_options.rb`

However, we often use namespacing to retain some structure within the
codebase. This change allows us to specify a factory in:

`spec/factories/projects/branch_rules/squash_options.rb`