Commented Feature: Provide Tweetinvi for Windows Store Apps [2050]

Windows Store Apps target .NET Core and libraries need consequently to have the targets updated.
Comments: Associated with changeset 35095: Version 0.9.1.0
- Created the core of the dependency injection for Portable Libraries using Autofac
- Container Factory
- Static Container
- PerThread Container
- PerApplication Container
- Using Portable Libraries only!