Use new settings.xml format

[dagwieers]

Implement the new settings format. Since we are targetting Leia and Matrix only, we might as well move now to the newt settings.xml format.

[dagwieers]

So there are some shortcomings in the new settings.xml format:

• You are not able to use boolean conditions like HasAddon(id) or System.AddonIsEnabled(id)
• Using RunScript() or Addon.OpenSettings(id) should work, but fails on Kodi v18.6 (Leia)

The benefits would be that:

• Every control can specify its data type properly (i.e. a select can indicate integer format)
• A lot more options, including help texts and advanced configuration levels

But without a working RunScript(), this becomes useless.

[matthuisman]

@dagwieers try

<dependencies>
    <dependency type="enable" on="property" name="infobool">System.HasAddon(pvr.iptvsimple)</dependency>
</dependencies>

or

<dependencies>
    <dependency type="enable">
        <condition on="property" name="InfoBool">System.HasAddon(pvr.iptvsimple)</condition>
    </dependency>
</dependencies>