Barricades durability bar

[Hypernoma]

I redid the loading bar texture to be transparent so it's not that much in the way:

If others want the texture I could upload it

If you fancy, please either fire this to myself or to another member of the development team and I'll stick it into the next patch. A great addition until I remember to work out why the hp is showing up incorrectly!

Thanks,

Hyper