Re-organize entire code repo (Azure#1220)

* moved Autorest core projects

* Moved CSharp generators

* Moved nodejs generator

* Moved python generator

* moved Ruby generator

* moved modelers

* moved testserver and client runtimes

* moved more client runtimes

* moved java generator and runtime (and python runtime)

* moved nuget package test

* Adjusting projects and namespaces -- AzureResourceSchema

* adjusted project/namespace name for AutoRest.CSharp.Azure

* updated names/namespaces for AutoRest*CSharp projects

* updates names/namespaces for extensions

* updated more projects and namespaces

* path fixes for a lot of stuff

* updated namespaces, paths, etc

* more updates to get closer to actually running

* fix up tests to run in new tree

* ensure that dotnet restore runs for whole project

* fixed typo

* made xprojs work on linux

* more fixes to xprojs

* Fixed NodeJS test project references

* removed superflous file references from njsproj files

* updated codegenerator

* fixed loading sln files

* fixed nuget files

* fixed bad paths

* fix - actually build package

* *sigh* ... restored disabled tests

.gitignore

@@ -1,9 +1,10 @@
 ## Ignore generated code 
-AutoRest/NugetPackageTest/Generated
-AutoRest/Generators/NodeJS/NodeJS.Tests/AcceptanceTests/*.js
+PackageTest/NugetPackageTest/Generated
+src/generator/AutoRest.NodeJS.Tests/AcceptanceTests/*.js
 
 ## Ignore user-specific files, temporary files, build results, etc.
 AutoRest/**/Templates/*.cs
+src/**/Templates/*.cs
 
 # User-specific files
 *.suo
@@ -176,8 +177,8 @@ Thumbs.db
 
 #old nuget restore folder
 .nuget/
-AutoRest/Generators/Ruby/*Tests/Gemfile.lock
-AutoRest/Generators/Ruby/*/RspecTests/Generated/*
+src/generator/AutoRest.Ruby*Tests/Gemfile.lock
+src/generator/AutoRest.Ruby*/*/RspecTests/Generated/*
 
 #netcore 
 /NetCore