create module: detect insecure registries

[clebs]

Description

The --insecure flag allows to push modules to insecure registries but this can also be automatically be detected if the --registry flag has a schema prefix. To make the command more ergonomic, the following logic shall be implemented:

• Automatically detect the schema of a registry if present (http | https) and adjust the push call accordingly.
• If a registry has http schema and the --insecure flag is not explicitly set, prompt the user to confirm pushing to an insecure registry.

Reasons

Better ergonomics.