Process approachsettlement-v1.0

[pveeckhout]

https://github.com/EDCD/EDDN/blob/master/schemas/approachsettlement-v1.0.json

map the approachsettlement EDDN message to POJO conform to CommodityV3

[jakaarl]

Yeah, so turns out the POJO mapping is there, and since I already started working on the processor, I renamed this issue accordingly.