Packaging ZeroNet for Mac/Win/Linux

So this is already a solved problem in ZeroBundle, but I'd like to provide an asset for Godot that essentially bundles and executes ZeroNet when someone launches a game that uses ZeroNet for data storage.

To achieve this, we of course need Mac/Win/Linux-specific versions of OpenSSL+Python, which I believe ZeroBundle already packages, though I have some concerns. Firstly, I can't access the Window's bundle since it's an .exe (running on Linux here, though do have wine...). Secondly I don't think we want to show things such as the ZeroNet tray bar icon on Windows if it's just running for a game's sake.

Would it be possible to provide the Python+OpenSSL binaries for Mac/Win/Linux somewhere which we can just use to create and update a third-party Godot package for ZeroNet?

Btw the ZeroFrame package for Godot is already looking quite good :)

```
func _be_external_program():
# Open a connection to a ZeroNet site
yield(use_site("18sGzRGJaTkuywmEyfPEZp1YG1dbA46h6m"), "site_connected")

# Send siteInfo command to retrieve information about the site
var response = yield(cmd("siteInfo", {}), "command_completed")
print("Site information: ", response)

# Store some data on the site
var data = Marshalls.utf8_to_base64(JSON.print({"score": 500}))
response = yield(cmd("fileWrite", {"inner_path": "data/user/data.json", "content_base64": data}), "command_completed")
print("Store response: ", response)

# Publish the data (Needs cert)

# Retrieve that data
response = yield(cmd("fileGet", {"inner_path": "data/user/data.json"}), "command_completed")
print(JSON.parse(response).result)
```