v0.2.0 - Auth2 updates, add `IResource`

What's Changed

• Update nuspec config by @donaldgray in #34
• Switch to file-scoped namespaces, add global using by @donaldgray in #35
• Auth2 updates + deserialisation by @donaldgray in #36
• Introduce IResource, replace some usages of IService by @donaldgray in #37
• Add deserialising of LanguageMap by @donaldgray in #39

Possible Breaking Changes

#37 introduced IResource which replaces some usages of IService. IService was used as both an indicator of things that are services and objects that have "id" and "type". IResource replaces the latter, IService inherits from this.

Full Changelog: v0.1.11...v0.2.0