[PM-32131] Add UseMyItems organization ability (#7014)

Purpose: UseMyItems is a new organization ability / plan flag
which is automatically enabled where UsePolicies is enabled,
but can be selectively disabled to disable My Items creation
when the Organization Data Ownership policy is turned on.

- new organization table column with all sprocs and views updated
- data migration to enable the feature for all organizations that already use policies (replicating existing behaviour)
- data and api models updated
- added to organization license file so it can be preserved in self-hosted instances
- note that we don't have a plan feature defined for this yet, so it is set based on UsePolicies to match the migration logic. Billing Team have a ticket to add this

src/Core/OrganizationFeatures/OrganizationSubscriptions/UpgradeOrganizationPlanCommand.cs

@@ -259,6 +259,7 @@ public class UpgradeOrganizationPlanCommand : IUpgradeOrganizationPlanCommand
         organization.UseApi = newPlan.HasApi;
         organization.SelfHost = newPlan.HasSelfHost;
         organization.UsePolicies = newPlan.HasPolicies;
+        organization.UseMyItems = newPlan.HasPolicies; // TODO: use the plan property when added (PM-32366)
         organization.MaxStorageGb = (short)(newPlan.PasswordManager.BaseStorageGb + upgrade.AdditionalStorageGb);
         organization.UseSso = newPlan.HasSso;
         organization.UseOrganizationDomains = newPlan.HasOrganizationDomains;