Find and Replace namespaces in .cs files

[dazinator]

It would be great if this tool could handle finding and replacing namespaces in source code files, to it could handle for example the namespace changes like the ones document here: https://docs.efproject.net/en/latest/miscellaneous/rc1-rc2-upgrade.html

[dazinator]

Microsoft.AspNet.FileProviders --> Microsoft.Extensions.FileProviders
Microsoft.AspNet.Hosting --> Microsoft.AspNetCore.Hosting
Microsoft.AspNet.Mvc.* --> Microsoft.AspNetCore.Mvc.*
Microsoft.AspNet.StaticFiles --> Microsoft.AspNetCore.StaticFiles

Microsoft.AspNet.Builder --> Microsoft.AspNetCore.Builder
Microsoft.Extensions.OptionsModel --> Microsoft.Extensions.Options
Microsoft.Extensions.WebEncoders --> System.Text.Encodings.Web
Microsoft.AspNet.Razor --> Microsoft.AspNetCore.Razor
Microsoft.AspNet.Razor.* --> Microsoft.AspNetCore.Razor.*
Microsoft.AspNet.Http --> Microsoft.AspNetCore.Http
Microsoft.AspNet.Http.* --> Microsoft.AspNetCore.Http.*
Microsoft.Data.Entity --> Microsoft.EntityFrameworkCore
Microsoft.Data.Entity.* --> Microsoft.EntityFrameworkCore.*

Microsoft.AspNet.Authorization --> Microsoft.AspNetCore.Authorization
Microsoft.AspNet.DataProtection --> Microsoft.AspNetCore.DataProtection