Fixing test if there is no middle names
Added module to generate Slovak names

Actually this is a copy-paste with a little changes of
https://github.com/tupinek/Mock-Person-SK
Added module to generate Czech names

Actually this is a copy-paste with a little changes of
https://github.com/tupinek/Mock-Person-CZ
Added module to generate German names

Actually this is a copy-paste with a little changes of
https://github.com/tupinek/Mock-Person-DE