Stop using DataFileNameManager in DynamicDataParser

[luca009]

Currently, the "supply chain" of the weather data involves downloading the data with the data receiver. Intuitively, the data receiver needs a way of knowing which files to download, which is the DataFileNameManager.

Currently, the data receiver downloads the files and stores them. The data parser then has to figure out again, which files are the correct ones locally - this is a bit wasteful.
Ideally, the data receiver should know which files are responsible for what and inform the data parser about it, so it can parse them directly.