Add CITATION.cff (#5541)

Author: rmccorm4

CITATION.cff

@@ -0,0 +1,7 @@
+cff-version: 1.2.0
+message: "If you use this software, please cite it as below."
+title: "Triton Inference Server: An Optimized Cloud and Edge Inferencing Solution."
+url: https://github.com/triton-inference-server
+repository-code: https://github.com/triton-inference-server/server
+authors:
+  - name: "NVIDIA Corporation"

qa/common/check_copyright.py

@@ -61,7 +61,7 @@
     'qa/L0_warmup/raw_mug_data', 'qa/L0_java_resnet/expected_output_data',
     'qa/L0_trt_dla_jetson/trt_dla_model_store',
     'qa/openvino_models/dynamic_batch', 'qa/openvino_models/fixed_batch',
-    'TRITON_VERSION')
+    'CITATION.cff', 'TRITON_VERSION')
 
 COPYRIGHT_YEAR_RE = 'Copyright( \\(c\\))? 20[1-9][0-9](-(20)?[1-9][0-9])?(,((20[2-9][0-9](-(20)?[2-9][0-9])?)|([2-9][0-9](-[2-9][0-9])?)))*,? NVIDIA CORPORATION( & AFFILIATES)?. All rights reserved.'