[ACS-1455] Schema validation report expansion with patch specific problems told apart (#386)

* Update schema validation report

- Introduced changes to tell apart problems due to optional unapplied
  patches within schema validation report

* Update SchemaDifferenceHelper

- Now populating optionalUpgradePatches list during the schema bootstrap
  registration to conform with patch registration mechanising already in use
- Added tests

* Make minor corrections

Co-authored-by: Nana Insaidoo <nana.insaidoo@meterian.com>

repository/src/test/java/org/alfresco/AllUnitTestsSuite.java

@@ -2,7 +2,7 @@
  * #%L
  * Alfresco Repository
  * %%
- * Copyright (C) 2005 - 2020 Alfresco Software Limited
+ * Copyright (C) 2005 - 2021 Alfresco Software Limited
  * %%
  * This file is part of the Alfresco software. 
  * If the software was purchased under a paid Alfresco license, the terms of 
@@ -233,7 +233,9 @@ import org.junit.runners.Suite;
     org.alfresco.repo.rendition2.TransformationOptionsConverterTest.class,
     org.alfresco.transform.client.registry.TransformServiceRegistryConfigTest.class,
 
-    org.alfresco.repo.event2.RepoEvent2UnitSuite.class
+    org.alfresco.repo.event2.RepoEvent2UnitSuite.class,
+
+    org.alfresco.util.schemacomp.SchemaDifferenceHelperUnitTest.class
 })
 public class AllUnitTestsSuite
 {