Localization: Make the extension localizable

[shana]

Move strings into resources, make things nice and ready for translation/localization

[jau228]

Are you looking at static binding? or will you need dynamic switching languages?

[haacked]

Are you looking at static binding? or will you need dynamic switching languages?

Whatever Visual Studio supports, which I assume is static binding. For example, we probably won't let people pick their language, but instead will reflect the language of the Visual Studio installation.

[shana]

Fixed on #75