MODROLESKC-62: Spike - Should Keycloak resources be cleaned up when disabling applications w/ purge=true

The goal of the spike is to define what should be done with the Keycloak resources when the FOLIO application is disabled.

Important: The recovery or rollback operation will not be supported. This means that in the case of any errors during application disabling, administrators should take recovery actions to restore the FOLIO deployment to a consistent state.

The table below shows a list of resources and how they are affected by disabling applications with the purge parameter set to either true or false. It also shows their current state after the completion of disabling the application.

The table columns:

Resources: This column lists the different types of resources, including Keycloak Authorization Resource Scopes, Keycloak Authorization Resource, Keycloak Authorization Policies, and Keycloak Realm Users.
Actions when disabling applications (purge - true): This column describes what happens to the resources when an application is disabled with the purge parameter set to true.
Actions when disabling applications (purge-false): This column describes what happens to the resources when an application is disabled with the purge parameter set to false.
Current state: This column describes the current state of the resources, regardless of the purge parameter setting.

Resources	Actions when disabling applications (purge = true)	Actions when disabling applications (purge = false)	Current state	Changes needed
Keycloak clients	Should be preserved	Should be preserved	Preserved	N
Keycloak Authorization Resource Scopes	Should be preserved	Should be preserved	Preserved	N
Keycloak Authorization Resource	All resources created for the modules listed in the application should be removed	All resources created for the modules listed in the application should be removed	Removed	N
Keycloak Authorization Policies	Policies for users (except system users) and roles should be preserved.	Policies for users (except system users) and roles should be preserved.	Left without changes	Y
Keycloak Authorization Permissions	All permissions for all resources created for the modules listed in the application should be removed	All permissions created for system users defined in the application should be removed	Left without changes	Y
Keycloak Realm Roles	Should be preserved	Should be preserved	Left without changes	N
Keycloak Realm Roles (Created for Default Roles)	Should be preserved	Should be preserved	Left without changes	N
Keycloak Realm Users	Should be preserved	Should be preserved	Left without changes	N
Keycloak Realm Users (Created for System Users)	Should be removed both the FOLIO user and the Keycloak User	Should be removed both the FOLIO user and the Keycloak User	Left without changes	Y

Backend Capabilities	All capabilities created from the module descriptors listed in the application should be detached from the users and roles and removed	Should be preserved	Left without changes	Y
UI Capabilities	All capabilities created from the module descriptors listed in the application should be detached from the users and roles and removed	Should be preserved	Left without changes	Y
Backend Capability Sets	All capability sets created from the module descriptors listed in the application should be detached from the users and roles and removed	Should be preserved	Left without changes	Y
UI Capability Sets	All capability sets created from the module descriptors listed in the application should be detached from the users and roles and removed	Should be preserved	Left without changes	Y