Some 2.0 samples are in 1.x directory

I foudn this samples located in wrong directory:
https://github.com/dotnet/orleans/tree/master/Samples/1.x/FSharp.NetCore
https://github.com/dotnet/orleans/tree/master/Samples/1.x/Orleans-Docker
https://github.com/dotnet/orleans/tree/master/Samples/1.x/Docker-Simple

Inspect the three linked sample directories under Samples/1.x and compare the repository's 2.0 sample layout to determine their intended destinations. Move FSharp.NetCore, Orleans-Docker, and Docker-Simple out of the 1.x directory, then verify that each sample remains present and organized under the appropriate version.

Written by the indexing model from the issue text.