Setup fix for installing detectron2

Author: lolipopshock

.github/workflows/ci.yml

@@ -21,6 +21,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install .
+        pip install .[DL]
         
     - name: Lint with flake8
       run: |

setup.py

@@ -26,11 +26,14 @@
         "pyyaml>=5.1",
         "torch==1.4",
         "torchvision==0.5",
-        "detectron2 @ git+https://github.com/facebookresearch/detectron2.git@v0.1.3#egg=detectron2"
       ],
       extras_require={
         "GCV": ['google-cloud-vision'], 
-        "Tesseract": ['pytesseract']
+        "Tesseract": ['pytesseract'],
+        "DL": [
+          "pycocotools",
+          "detectron2 @ git+https://github.com/facebookresearch/detectron2.git@v0.1.3#egg=detectron2",
+        ]
       },
       include_package_data=True
       )