readonly - introduce settings, provide from files config service and adopt in working copies

src/vs/workbench/browser/workbench.contribution.ts

@@ -317,6 +317,9 @@ const registry = Registry.as<IConfigurationRegistry>(ConfigurationExtensions.Con
 			},
 			'workbench.localHistory.exclude': {
 				'type': 'object',
+				'patternProperties': {
+					'.*': { 'type': 'boolean' }
+				},
 				'markdownDescription': localize('exclude', "Configure [glob patterns](https://code.visualstudio.com/docs/editor/codebasics#_advanced-search-options) for excluding files from the local file history. Changing this setting has no effect on existing local file history entries."),
 				'scope': ConfigurationScope.RESOURCE
 			},