Some new textures added/removed

* home-power-inhibit is unused so removed them. Cant remember where they
come from.

* Refreshed OverlayWatched/Watching (PVR has reconding is same texture as
Overlay watching.

* NEW TEXTURES still unused but added for time being
DefaultBDEmpty/full
DefaultUSB

updated Rebvamp.xbt to match
updated Readme.md

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