Added the ability to parse the assets.

[whenhellfreezes]

I have tested it too.

[flexd]

Hi. This re-implements the general purpose parsing set up in the library, please see how the other API endpoints are implemented.

I also do not play EVE any more, and will not be maintaining this. I suggest you fork the repository and continue writing what you need there :-)

[whenhellfreezes]

I had to not use the xml unmarshaller because of the fact that some items were containers which could themselves hold containers inside them etc. Alright thanks for the heads up though.