plugin.xml

<?xml version="1.0"?>
<zend-config>
    <plugin>
        <!-- the plugin name [A-Za-z_] -->
        <pluginName>PimcoreDependencyInjectionPlugin</pluginName>

        <!-- a short description -->
        <pluginDescription><![CDATA[PHP-DI based dependency injection.]]></pluginDescription>

        <!-- meta data -->
        <pluginVersion>0.2.3</pluginVersion>
        <pluginRevision>1</pluginRevision>

        <!-- className of the plugin which extends Pimcore_API_Plugin_Abstract-->
        <pluginClassName>SeerUK\Pimcore\DependencyInjection\DependencyInjectionPlugin</pluginClassName>

        <!-- include paths relative to plugin-directory -->
        <pluginIncludePaths>
            <path>/PimcoreDiPlugin/lib</path>
        </pluginIncludePaths>

        <!-- namespaces to register with autoloader-->
        <pluginNamespaces>
            <namespace>SeerUK\Pimcore\DependencyInjection</namespace>
        </pluginNamespaces>
    </plugin>
</zend-config>