Migrating roles and schemes to new Cache Layer (#11936)

* Migrating roles and schemes to new Cache Layer

* Adding missed license headers

* Updating cache tests

* Adding the cache layer to the testlib helper

* Fixing cyclic dependency

* fixing a bit of not-idiomatic error handling

* Another small fix arrount idiomatic error handling

store/sqlstore/supplier.go

@@ -152,11 +152,10 @@ func NewSqlSupplier(settings model.SqlSettings, metrics einterfaces.MetricsInter
 	supplier.oldStores.UserTermsOfService = NewSqlUserTermsOfServiceStore(supplier)
 	supplier.oldStores.linkMetadata = NewSqlLinkMetadataStore(supplier)
 	supplier.oldStores.reaction = NewSqlReactionStore(supplier)
+	supplier.oldStores.role = NewSqlRoleStore(supplier)
+	supplier.oldStores.scheme = NewSqlSchemeStore(supplier)
 	supplier.oldStores.group = NewSqlGroupStore(supplier)
 
-	initSqlSupplierRoles(supplier)
-	initSqlSupplierSchemes(supplier)
-
 	err := supplier.GetMaster().CreateTablesIfNotExists()
 	if err != nil {
 		mlog.Critical("Error creating database tables.", mlog.Err(err))