Support collection of custom stats in stats frontend module

[zero-24]

Summary of Changes

Similar to how the backend module triggers an event to add additional items to its output, this adds support for the mod_stats module to do the same.

A new onGetStats event is published with a single parameter, a context (hardcoded to mod_stats_admin) and any plugin responding to this event is expected to return an array matching this schema:

array(
    'title' => 'Stats Item Title',
    'data' => 'Data to be displayed',
    'icon' => 'Optional IcoMoon font icon for the row, defaulting to "info" if not set',
);

The title and data attributes MUST be defined or a row is not added.

Similar to the quickicons implementation, items can NOT be removed via the plugin event.

Testing Instructions

Add the following method to a system plugin:

    public function onGetStats($context)
    {
        return array(
            array(
                'title' => 'Plays Audio',
                'data'  => JText::_('JNO'),
                'icon'  => 'music',
            ),
        );
    }

With the admin stats module enabled, you should see a new row with this data.

Based on the same thing that @mbabker did for the backend: #10870

The weblinks part is moved here: https://github.com/joomla-extensions/weblinks/pull/333/files to be included in the 3.7 version.

[zero-24]

@franz-wohlkoenig as you have tested the weblinks PR you have also tested here ;)

[ghost]

I have tested this item ✅ successfully on 9883fad

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[sanderpotjer]

@zero-24 adding the onGetStats function to a system plugin already adding a new row before applying your patch?

[zero-24]

Yes in the backend but not in the frontend module.

[sanderpotjer]

I have tested this item 🔴 unsuccessfully on 9883fad

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[sanderpotjer]

The custom data is displayed instead of the "article hits" when "Hit Counter" is set to yes in the module options.

Before patch:

After patch:

So the custom stats data is shown, but the hits value is gone.

[zero-24]

The custom data is displayed instead of the "article hits" when "Hit Counter" is set to yes in the module options.

fixed please test again @sanderpotjer

[sanderpotjer]

I have tested this item ✅ successfully on f9dd52a

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[sanderpotjer]

@zero-24 thanks, that fixed it!

[astridx]

I have tested this item ✅ successfully on f9dd52a

I tested this successfully.

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[astridx]

Do we need this line 148 ($app = JFactory::getApplication();), because it is already defined earlier.

[zero-24]

fixed

[gwsdesk]

I have tested this item ✅ successfully on 84c2ee7

I have tested this item ✅ successfully on f9dd52a

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[gwsdesk]

I have tested this item ✅ successfully on f9dd52a

---

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