Added placeholder for 'ru_RU' locale.

Signed-off-by: Alexander Shvetsov <ashvetsov@definitif.ru>
Added '.DS_Store' to .gitignore for easier Mac development.

Signed-off-by: Alexander Shvetsov <ashvetsov@definitif.ru>
Implemented basic Russian names generation (gender-dependant).

Signed-off-by: Alexander Shvetsov <ashvetsov@definitif.ru>