Move all loggers Akka.Xyz to Akka.Loggers.Xyz

The following have been changed to Akka.Loggers.Xyz
- DLL name
- Nuget package name
- Source code folder

Updated AssemblyInfo.cs to follow the standard

Fixes #292
Merge branch 'new-logger-package-names-292' of https://github.com/HCanber/akka.net into HCanber-new-logger-package-names-292
Merge pull request #475 from Aaronontheweb/dev

Manual merge for #465