Quest: git fs support

[lifeart]

prev issue: #305

to get it working, likely we need:

• replace path with vscode path fallack (replace path with vscode path fallack #304)

P.S. Finally figured out how to send global commands from extension server, likely one more related issue should be created:

• to get it in addon api
• get list of all existing commands inside server
• provide vscode deps to addon api
• simplify existing commands proxy loop
• to get list of installed extensions for vscode: detect list of installed extensions (using vscode api) #229
• autofix on save using code-action API Ability to --fix on save for vscode #200

P.P.S Once we will be able to land it, we could start explore github repos usage (it's editor for hotkey .), and automatically "install" nessesary addons using fetch API into virtual FS.

https://github.com/0xGG/vscode-web-fs/blob/master/src/extension.ts