It seems like the whole process of generating the STCN SW dataset is scripted now (only the cleaning operations are not included yet).

* Project-wide: changed the URI of the `stcnv` XML prefix.
* [KMC_0500,FIX] Missing graph arguments in RDFS comment assertion.
* [STCN_SCRAPE,EXT] The graph scraped from and asserted into can now be different.
* [STCN_SCRIPT,EXT] Updated the script to use the `Data` subdirectory, check for file existence before redoing, calling the scraping predicates correctly.