Function 'localize' moved to ServicesManagerTarget library

- bnc#886117
- added test case
- tested in latest build and the fix works
- tested with `rake osc:build` and passes

well, you replace one functional access with different one. I think it is not big difference. Correct object approach is to have class Target, which have two constants, that are instance of such class and have method like localize and possible others.