Reusable ingress/egress rule templates for security groups

### The required feature described as a wish

Problem: There is currently no way to save or reuse common ingress/egress rule sets across security groups. Every new security group requires rules to be manually re-entered one by one through the UI

Requested behavior: allow users to define and save named rule templates. For instance "baseline-access", "web-server", "database", with options to define specific ports needed. When creating a new security group, allow selection of one or more templates to pre-populate rules

Cloudstack Verison 4.22.0.0

Start by locating the security-group creation entry point and the existing ingress/egress rule model and APIs. Trace how rules are entered and persisted, then identify the tests covering security-group creation; done means named templates can be saved, selected singly or in combination, and used to pre-populate rules with specified ports.

Written by the indexing model from the issue text.