Install Atoms Houdini plugin on Windows

Download Atoms Houdini from here.
Extract the AtomsHoudini folder from the zip archive.
Copy the AtomsHoudini folder to:
```
 C:/Program Files/Toolchefs/
```

Add those lines to your houdini.env file (if you installed AtomsHoudini in a different folder please replace "C:/Program Files/Toolchefs" with the right location):

PATH = "C:/Program Files/Toolchefs/AtomsHoudini/bin;$PATH;"
HOUDINI_PATH = "C:/Program Files/Toolchefs/AtomsHoudini/;&;"
ATOMS_DATA = "C:/Program Files/Toolchefs/AtomsHoudini/data"
PYTHONPATH="C:/Program Files/Toolchefs/AtomsHoudini/scripts;$PYTONPATH;"
ATOMS_ROOT = "C:/Program Files/Toolchefs/AtomsHoudini"

If the license server is running on another machine set the environment variable toolchefs_LICENSE or RLM_LICENSE to 5053@servername