Add missing enviroment file for gpu installation on windows

Author: constantinpape

environment_gpu_win.yaml

@@ -0,0 +1,25 @@
+channels:
+    - pytorch
+    - nvidia
+    - conda-forge
+name:
+    synapse-net
+dependencies:
+    - bioimageio.core
+    - kornia
+    # This pin is necessary because later nifty versions have import errors on windows.
+    - nifty =1.2.1=*_4
+    - magicgui
+    - napari
+    - protobuf <5
+    - pip
+    - pyqt
+    - python-elf
+    - pytorch
+    - pytorch-cuda>=11.7  # you may need to update the cuda version to match your system
+    - torchvision
+    - tensorboard
+    - torch_em
+    - trimesh
+    - pip:
+        - napari-skimage-regionprops