Improvement Request : Adjust security groups more flexibly

##### ISSUE TYPE
* Improvement Request

##### COMPONENT NAME
~~~
Security Group
~~~

##### CLOUDSTACK VERSION
~~~
4.19.1.2
~~~

##### CONFIGURATION
~~~
Basic or Advanced networking with Security Group
~~~

##### OS / ENVIRONMENT

##### SUMMARY
~~~
We should be able to add, change or delete security group rules while the instance is running.
Sometimes we need to change the security group for some testing or security protection purposes. However, currently, we are unable to switch to another security group rules while the instance is running. As a result, we have no choice but to affect more instance or stop the instance , change the security group, and then start the instance again.
~~~

##### STEPS TO REPRODUCE

~~~

~~~

##### EXPECTED RESULTS

~~~
We should be able to add, change or delete security group rules while the instance is running.
~~~

Start with the Security Group component and review how Basic and Advanced networking apply security groups to running instances. Define the behavior for adding, changing, and deleting rules without stopping or restarting an instance. Done means these operations work while the instance remains running in the supported configurations.

Written by the indexing model from the issue text.