Better EGN detection when import biological tests from Excel file.

Signed-off-by: plamen911 <plamen@lynxlake.org>
Copy medical info from one firm workers to another firm workers (related by EGN)

Signed-off-by: plamen911 <plamen@lynxlake.org>
Fixed worker medical info import - duplicated doctor descriptions

Signed-off-by: plamen911 <plamen@lynxlake.org>