[Feature] Added User Data Config

[arunpandian7]

I have added a feature that lets user direct to their User Data Dir (.vscode directory). This would easily let them use the codesever with their own personalized settings and extensions in no time.

Instructions to use

• Upload your .vscode folder to your Google Drive from your local device
• Pass the path to the .vscode folder (in your Google Drive) to ColabCode(user_data_dir="PATH")

.vscode folder contains argv.json and extensions folder that have each extension in respective folder.

How it works

code-server have command line argument which let us do this.