Deshim VirtualExecutor in thrift

Summary:
The following rules were deshimmed:
```
//folly:virtual_executor -> //folly/executors:virtual_executor
```

The following headers were deshimmed:
```
folly/VirtualExecutor.h -> folly/executors/VirtualExecutor.h
```

This is a codemod. It was automatically generated and will be landed once it is approved and tests are passing in sandcastle.
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Reviewed By: vitaut

Differential Revision: D57217657

fbshipit-source-id: f02efff8358461fb61b469b4160059ef0e65447e

third-party/thrift/src/thrift/lib/cpp/concurrency/ThreadManager.cpp

@@ -35,12 +35,12 @@
 #include <folly/IntrusiveList.h>
 #include <folly/Synchronized.h>
 #include <folly/ThreadLocal.h>
-#include <folly/VirtualExecutor.h>
 #include <folly/concurrency/PriorityUnboundedQueueSet.h>
 #include <folly/executors/Codel.h>
 #include <folly/executors/InlineExecutor.h>
 #include <folly/executors/MeteredExecutor.h>
 #include <folly/executors/QueueObserver.h>
+#include <folly/executors/VirtualExecutor.h>
 #include <folly/io/async/Request.h>
 #include <folly/portability/GFlags.h>
 #include <folly/synchronization/LifoSem.h>

third-party/thrift/src/thrift/lib/cpp2/server/ResourcePool.cpp

@@ -15,10 +15,10 @@
  */
 
 #include <stdexcept>
-#include <folly/VirtualExecutor.h>
 #include <folly/executors/CPUThreadPoolExecutor.h>
 #include <folly/executors/MeteredExecutor.h>
 #include <folly/executors/ThreadPoolExecutor.h>
+#include <folly/executors/VirtualExecutor.h>
 #include <thrift/lib/cpp2/server/ResourcePool.h>
 
 namespace apache::thrift {

third-party/thrift/src/thrift/lib/cpp2/server/ThriftServer.h

@@ -37,9 +37,9 @@
 #include <folly/SocketAddress.h>
 #include <folly/Synchronized.h>
 #include <folly/TokenBucket.h>
-#include <folly/VirtualExecutor.h>
 #include <folly/dynamic.h>
 #include <folly/executors/IOThreadPoolExecutor.h>
+#include <folly/executors/VirtualExecutor.h>
 #include <folly/experimental/PrimaryPtr.h>
 #include <folly/experimental/coro/AsyncScope.h>
 #include <folly/experimental/observer/Observer.h>