Add a feature to define the language codes that automatically add new localizable directory and files.

[metasmile]

currently provided languages and resoures:

en
fi

/en.lporj/Localizable.strings
/fi.lporj/Localizable.strings

add lang codes:

-l es fr ja

results after finish:

/en.lporj/Localizable.strings
/fi.lporj/Localizable.strings
/es.lporj/Localizable.strings <- contains new translated lines
/fr.lporj/Localizable.strings <- contains new translated lines
/ja.lporj/Localizable.strings <- contains new translated lines