Refactor the way to get the path and version paths from an entity

[burzum]

The way I implemented it now doesn't require a helper, instead you can now get (any) path directly from the entity. I'm just still not happy with the image versions but I think this should be handled in a similar way. Maybe I'm going to add FileStorageEntity::versionPath('type', $options); or something similar, I guess I'll have to try a few things to figure out a nice way to use that functionality.

I think the version path and filename should be handled by the path builders as well but then they need to become aware of the image processing.

[robertpustulka]

Does #95 intend to fix this?

[burzum]

Yes

[robertpustulka]

OK, I'm closing this.

[burzum]

@robertpustulka I'm not yet happy with the code for this :( But I haven't found a better way yet. So your input on this is welcome when you have the time to do so.