add coordinates and scale in subject section

[kkrebs]

We need new code to import also coordinates and scale information from 4028 (035G) and 4026 (035E). For example see https://ikar.k10plus.de/DB=1.68/PPNSET?PPN=101493568

Documentation:

• coordinates: https://format.k10plus.de/k10plushelp.pl?cmd=kat&val=4028&katalog=Standard
• scale: https://format.k10plus.de/k10plushelp.pl?cmd=kat&val=4026&katalog=Standard