Multiple configurations causes Duplicate Key exception

[smudge202]

There are legitimate cases for having bindings that differ by Implementation Type (relying on duplicate Service Types):

However, these cause Duplicate Key Exceptions when registering singletons in WrappedServiceProvider:

https://github.com/smudge202/compose/blob/dev/src/Compose/WrappedServiceProvider.cs#L17

[smudge202]

Likely caused by this: smudge202@3605ffe

[smudge202]

As per https://github.com/aspnet/Options/blob/dev/src/Microsoft.Framework.OptionsModel/OptionsManager.cs#L37 the options model is designed as an aggregation/additive configuration model. We're hitting this issue increasingly frequently at 4Com.

[smudge202]

This has been resolved as part of the structural change found here: 4Com/compose#1