Please add support for *.xml.xz (EPG url)

[Ricardo-Simoes]

Is your feature request related to a problem? Please describe.
Please add support for *.xml.xz (EPG url). Currently ony *.xml and *.xml.gz

Describe the solution you'd like
I would like that in "Settings > EPG Url" the *.xml.xz format could be an option

Describe alternatives you've considered
Manually unpack *xml.xz to regular *.xml

Additional context
These are the current settings for EPG Url... adding support for *.xml.xz would be great!