Add *.engine (TensorRT extensions) to .gitignore (#5911)

* Add *.engine (TensorRT extensions) to .gitignore

* Update .dockerignore

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

.dockerignore

@@ -15,6 +15,7 @@ data/samples/*
 **/*.pt
 **/*.pth
 **/*.onnx
+**/*.engine
 **/*.mlmodel
 **/*.torchscript
 **/*.torchscript.pt

.gitignore

@@ -48,6 +48,7 @@ VOC/
 *.pt
 *.pb
 *.onnx
+*.engine
 *.mlmodel
 *.torchscript
 *.tflite