mtp/ptp support

[vtolstov]

What do you think about libmtp support?
As i see verne already have some abstraction about fs. But i'm not fully understand how to add libmtp support.

[marcelhollerbach]

That would be great, there are basically 2 abstractions for that, emous for the devices, and efm for the files, but i think, once you have mounted the file something with emous you can simply use the normal fs layer to access it ... :)