Show Pressure in inches, instead of hPa

[TonyTTTT]

Pressure is typically shown as inches in most weather apps, so a suggestion to use in:

        data_points.append({
            "label": "Pressure",
            "measurement": round(weather.get('current', {}).get("pressure", 0) * 0.02953, 2),
            "unit": 'in',
            "icon": self.get_plugin_dir('icons/pressure.png')
        })

[z2k]

That might be true in the US, but the SI unit for air pressure is Pascal and that is what the rest of the world is using.

[TonyTTTT]

Good point, so Pressure should be shown based on location (this would be in sync with the OpenWeather iOS App that shows pressure in in in the US)