kubectl-gs release v2.1.0

Fixed

• login command: Try logging in again if token renewal fails.
• Add security API group to scheme in order to get organizations during login.

Changed

• Enable logging into clusters in all versions and namespaces if --insecure-namespace flag is active.
• Simplify log in with context name

Added

• Add support for self-contained kubeconfig creation for management cluster context.
• Add --keep-context flag to login.