VS Code Extension for FFI Navigator

VSCode extension for ffi navigator.

Install the Extension to VSCode

You can get the extension by searching FFI Navigator in the VSCode marketplace.

Complete the python setup mentioned in the root's README. It is recommended to run the setup script; otherwise you have to make sure ffi_navigator is in PYTHONPATH when running VSCode.
Run npm install && npm run compile on the vscode-extension folder
Copy the extension folder to your vscode extension folder
- cp -r /path/to/ffi-navigator/vscode-extension ~/.vscode/extensions/ffi-navigator
Reload the window

If you use VSCode Remote SSH extension to develop a project on a remote server, you can also enable ffi_navigator.

Complete the above compile and intall steps on your local machine
Open VSCode and connect to a remote server
Go to the Extensions tab in VSCode and click "install" in "FFI Navigator" extension shown in "LOCAL - INSTALLED"
You can now see "FFI Navigator" also appears at the "SSH: host - INSTALLED" side
Complete the python setup mentioned in the root's README on the remote server
Reload the window

Run npm install on the vscode-extension folder
Open VS Code on the vscode-extension folder (do not include the python side)
Press Debug -> Start Debugging
Now VSCode will open a new window [Extension development host]
- File-> Open/Open folder and select /path/to/tvm
- Try out the goto definition by opening a python file, say python/tvm/api.py line 59 _api_internal._min_value, click goto definition

NOTE: You only need to reinstall the extension when the client side change.

If you chane the python side, no re-installation is necessary.
When you update the python project, and do some debugs, but remember to reload the window when you do so.

You can select output tab in the terminal bar, and select FFI Navigator to see logs from the python side

I have installed the extension, but still see "ffi_navigator is not installed.." We need to clarify that VSCode extension is just a way for this package to interact with VSCode. As a result, in addition to installing the VSCode extension, you also have to install this Python package.
I have installed both VSCode extension and Python package. Why I still see the warning? The extension uses python command to run ffi_navigator by default. If your ffi_navigator was installed in another Python environment and requires differernt command to launch (e.g, python3, anaconda, virtual environment), you can go to VSCode settings UI and set "Extensions -> FFINavigator -> Pythonpath" accordingly. Alternatively, you can directly open settings.json and put the following configuration:
```
{
  "ffi_navigator.pythonpath": "<your-python-path>"
}
```