Added code and unit tests on sample data

- Meno: Daniel Soos
- wiki: http://vi.ikt.ui.sav.sk/User:Daniel.Soos?view=home
- Cviciaci: Michal Laclavik

* Parsing two sql dump files - sk wiki langlinks and sk titles with ids
* Code searches for HU links and matches its titles with sk titles
* Using hashmap to store id and title
* 2 10k line files; code runtime less than a second for these sample
* 2 primitive unit tests: test if an output file is correctly generated
* and if structure looks valid