Added Google Login.

[janamkhatiwada]

• Added Login with google in UI.

• Added a DB field to check whether user is allowed or not. IF it is authencated with google allowed is set to true.

• Modified build.sh the sed command had some issues so it wasnot able to update the Dockerfile. Also the arm64 architecutre was missing added it too.

• Gogle configurations can be passed as Environment Variables. Here we can update secrets , cliendID from google developer console and allowed domains checked which email domains are allowed. Required ENV variables for google login to work.

       GOOGLE_CLIENT_ID
       GOOGLE_CLIENT_SECRET
       GOOGLE_REDIRECT_URL
       ALLOWED_DOMAINS

• Two new modules were added,

  1. golang.org/x/oauth2 v0.21.0 2 . google.golang.org/api v0.185.0

• Updated login.html to show button for login with google. By default the google logged in Users don't have Admin access.

[d3vilh]

Thank you! Let me test it with different archs and we good to go with merging to main.