Move pytorch distributed tests to separate folder for contbuild. (pytorch#30445)

Summary:
Pull Request resolved: pytorch#30445

Create distributed and rpc directories under caffe/test for better management
of unit tests.

Differential Revision: D18702786

fbshipit-source-id: e9daeed0cfb846ef68806f6decfcb57c0e0e3606

Author: pritamdamania

.jenkins/pytorch/multigpu-test.sh

@@ -31,7 +31,7 @@ fi
 
 python tools/download_mnist.py --quiet -d test/cpp/api/mnist
 OMP_NUM_THREADS=2 TORCH_CPP_TEST_MNIST_PATH="test/cpp/api/mnist" build/bin/test_api
-time python test/run_test.py --verbose -i distributed
-time python test/run_test.py --verbose -i c10d
-time python test/run_test.py --verbose -i c10d_spawn
+time python test/run_test.py --verbose -i distributed/test_distributed
+time python test/run_test.py --verbose -i distributed/test_c10d
+time python test/run_test.py --verbose -i distributed/test_c10d_spawn
 assert_git_not_dirty

.jenkins/pytorch/test.sh

@@ -131,22 +131,22 @@ elif [[ "${BUILD_ENVIRONMENT}" == *-NO_AVX2-* ]]; then
 fi
 
 test_python_nn() {
-  time python test/run_test.py --include nn --verbose
+  time python test/run_test.py --include test_nn --verbose
   assert_git_not_dirty
 }
 
 test_python_ge_config_simple() {
-  time python test/run_test.py --include jit_simple --verbose
+  time python test/run_test.py --include test_jit_simple --verbose
   assert_git_not_dirty
 }
 
 test_python_ge_config_legacy() {
-  time python test/run_test.py --include jit_legacy jit_fuser_legacy --verbose
+  time python test/run_test.py --include test_jit_legacy test_jit_fuser_legacy --verbose
   assert_git_not_dirty
 }
 
 test_python_all_except_nn() {
-  time python test/run_test.py --exclude nn jit_simple jit_legacy jit_fuser_legacy --verbose --bring-to-front quantization quantized quantized_tensor quantized_nn_mods
+  time python test/run_test.py --exclude test_nn test_jit_simple test_jit_legacy test_jit_fuser_legacy --verbose --bring-to-front test_quantization test_quantized test_quantized_tensor test_quantized_nn_mods
   assert_git_not_dirty
 }