qt: expose texture view state as properties in `TextureProviderItem`

This can be useful in certain situations, like tiling the source texture without a layer (thanks to wrap mode).

It should be noted that these are the view states, we are not modifying the source texture state here.

ShaderEffectSource already exposes these for the layer texture it manages. Though, it seems more limited there, for example it does not seem to allow disabling filtering completely, or allow adjusting anisotropy level (which does not mean anything at the moment but nevertheless).