Please check german CP858 settings before creating a new country.sys

[fritzmueller]

Jerome Shidel asked me to remember you that you should keep in mind that rr created a fix for german country 49 and CP858, line 197 and 198. He got a copy of the modified country.sys for FDT2412 from me (created by Laaca).
This fixes the bug that with 49,858 "dir" shows US settings of date and time.

__de_437 dw 12, 49,437,0,0
dd _de_437

See also:
https://gitlab.com/FreeDOS/base/kernel/-/tree/master/BIN?ref_type=heads - COUNTRY.SYS