title: how to use inflections on a rails engine
body: <p>i have created an engine with </p>
  
  <pre><code>rails plugin new myengine --mountable
  </code></pre>
  
  <p>when searching for 'inflections' in the project folder, i find the 
  <strong>/test/dummy/config/initializers/inflections.rb</strong> file</p>
  
  <p>in this file i put </p>
  
  <pre><code>ActiveSupport::Inflector.inflections(:en) do |inflect|
    inflect.irregular 'singular_model', 'plural_model'
  end
  </code></pre>
  
  <p>when i try to use the model generator (from project root)</p>
  
  <pre><code>bin/rails generate model singular_model
  </code></pre>
  
  <p>then i get the a migration with <strong>singular_models</strong> as the table name and migration name</p>
  
  <p>when i run the same command from myengine/test/dummy</p>
  
  <pre><code>bin/rails generate model singular_model
  </code></pre>
  
  <p>i get the spected result: <strong>plural_model</strong> as table name and migration name</p>
  
  <p>so, how can i load the inflector into the rails generator?</p>