Auto import annotation routes for admingenerator type

before:

<pre><code>NitraVatBundle_admin_nitra_vat_bundle_debt_annotation:
    resource: "@NitraVatBundle/Controller/Debt/"
    type:     annotation
    prefix:   /debt

NitraVatBundle_admin_nitra_vat_bundle_debt:
    resource: "@NitraVatBundle/Controller/Debt/"
    type:     admingenerator
    prefix:  /debt</code></pre>

after:

<pre><code>NitraVatBundle_admin_nitra_vat_bundle_debt:
    resource: "@NitraVatBundle/Controller/Debt/"
    type:     admingenerator
    prefix:  /debt</code></pre>