chore: import upstream snapshot with attribution

test/cpp/inference/infer_ut/README.md

@@ -0,0 +1,37 @@
+# Inference Model UT
+
+There are several model tests currently:
+- test_ernie_text_cls.cc
+- test_LeViT.cc
+- test_ppyolo_mbv3.cc
+- test_ppyolov2_r50vd.cc
+- test_resnet50.cc
+- test_resnet50_quant.cc
+- test_yolov3.cc
+
+To build and execute tests on Linux, simply run
+```
+./run.sh $PADDLE_ROOT $TURN_ON_MKL $TEST_GPU_CPU $DATA_DIR
+```
+To build on windows, run command with busybox
+```
+busybox bash ./run.sh $PADDLE_ROOT $TURN_ON_MKL $TEST_GPU_CPU $DATA_DIR
+```
+
+- After run command, it will build and execute tests and download to ${DATA_DIR} automatically.
+- `$PADDLE_ROOT`: paddle library path
+- `$TURN_ON_MKL`: use MKL or Openblas
+- `$TEST_GPU_CPU`: test both GPU/CPU mode or only CPU mode
+- `$DATA_DIR`: download data path
+
+now only support 4 kinds of tests which controlled by `--gtest_filter` argument, test suite name should be same as following.
+- `TEST(gpu_tester_*, test_name)`
+- `TEST(cpu_tester_*, test_name)`
+- `TEST(onednn_tester_*, test_name)`
+- `TEST(tensorrt_tester_*, test_name)`
+
+skpied test suite name.
+- `TEST(DISABLED_gpu_tester_*, test_name)`
+- `TEST(DISABLED_cpu_tester_*, test_name)`
+- `TEST(DISABLED_onednn_tester_*, test_name)`
+- `TEST(DISABLED_tensorrt_tester_*, test_name)`