Add support for EPG timeshift per target

[blockloop]

Is your feature request related to a problem? Please describe.

The EPG I'm using is for a specific timezone, but the users are all in different timezones.

Describe the solution you'd like I'd like to set the EPG timeshift per target so that the EPG will be accurate.

Describe alternatives you've considered None really. I could use a cloud service that provides this like xtream-editor but I'd rather not.