[PM-19145] refactor organization service.import async (#5800)

* initial lift and shift

* extract function RemoveExistingExternalUsers

* Extract function RemoveExistingUsers()

* extract function OverwriteExisting()

* create new model for sync data

* extract add users to function, rename

* rename OrganizatinUserInvite for command, implement command

* implement command

* refactor groups logic

* fix imports

* remove old tests, fix imports

* fix namespace

* fix CommandResult useage

* tests wip

* wip

* wip

* remove redundant code, remove looping db call, refactor tests

* clean up

* remove looping db call with bulk method

* clean up

* remove orgId param to use id already in request

* change param

* cleanup params

* remove IReferenceEventService

* fix test

* fix tests

* cr feedback

* remove _timeProvider

* add xmldoc, refactor to make InviteOrganizationUsersCommand vNext instead of default

* switch back to command

* re-add old ImportAsync impl

* fix test

* add feature flag

* cleanup

* clean up

* fix tests

* wip

* wip

* add api integration tests for users WIP

* groups integration tests

* cleanup

* fix error from merging main

* fix tests

* cr feedback

* fix test

* fix test

src/Core/OrganizationFeatures/OrganizationServiceCollectionExtensions.cs

@@ -190,6 +190,7 @@ public static class OrganizationServiceCollectionExtensions
         services.AddScoped<IInviteUsersPasswordManagerValidator, InviteUsersPasswordManagerValidator>();
         services.AddScoped<IInviteUsersEnvironmentValidator, InviteUsersEnvironmentValidator>();
         services.AddScoped<IInitPendingOrganizationCommand, InitPendingOrganizationCommand>();
+        services.AddScoped<IImportOrganizationUsersAndGroupsCommand, ImportOrganizationUsersAndGroupsCommand>();
     }
 
     // TODO: move to OrganizationSubscriptionServiceCollectionExtensions when OrganizationUser methods are moved out of