Migrate SO management routes to new plugin

.github/CODEOWNERS

@@ -131,6 +131,7 @@
 /src/legacy/server/saved_objects/  @elastic/kibana-platform
 /src/legacy/server/status/ @elastic/kibana-platform
 /src/plugins/status_page/ @elastic/kibana-platform
+/src/plugins/saved_objects_management/ @elastic/kibana-platform
 /src/dev/run_check_published_api_changes.ts @elastic/kibana-platform
 
 # Security

src/core/server/saved_objects/index.ts

@@ -21,8 +21,6 @@ export * from './service';
 
 export { SavedObjectsSchema } from './schema';
 
-export { SavedObjectsManagement } from './management';
-
 export * from './import';
 
 export {

src/core/server/saved_objects/service/index.ts

@@ -36,6 +36,7 @@ export interface SavedObjectsLegacyService {
   getScopedSavedObjectsClient: SavedObjectsClientProvider['getClient'];
   SavedObjectsClient: typeof SavedObjectsClient;
   types: string[];
+  importAndExportableTypes: string[];
   schema: SavedObjectsSchema;
   getSavedObjectsRepository(...rest: any[]): any;
   importExport: {

src/core/server/server.api.md

@@ -2028,6 +2028,8 @@ export interface SavedObjectsLegacyService {
     // (undocumented)
     getScopedSavedObjectsClient: SavedObjectsClientProvider['getClient'];
     // (undocumented)
+    importAndExportableTypes: string[];
+    // (undocumented)
     importExport: {
         objectLimit: number;
         importSavedObjects(options: SavedObjectsImportOptions): Promise<SavedObjectsImportResponse>;

src/legacy/core_plugins/kibana/index.js

@@ -24,7 +24,6 @@ import { promisify } from 'util';
 import { migrations } from './migrations';
 import { importApi } from './server/routes/api/import';
 import { exportApi } from './server/routes/api/export';
-import { managementApi } from './server/routes/api/management';
 import mappings from './mappings.json';
 import { getUiSettingDefaults } from './ui_setting_defaults';
 import { registerCspCollector } from './server/lib/csp_usage_collector';
@@ -259,7 +258,6 @@ export default function(kibana) {
       // routes
       importApi(server);
       exportApi(server);
-      managementApi(server);
       registerCspCollector(usageCollection, server);
       server.injectUiAppVars('kibana', () => injectVars(server));
     },

src/legacy/core_plugins/kibana/inject_vars.js

@@ -20,12 +20,7 @@
 export function injectVars(server) {
   const serverConfig = server.config();
 
-  // Get types that are import and exportable, by default yes unless isImportableAndExportable is set to false
-  const { types: allTypes } = server.savedObjects;
-  const savedObjectsManagement = server.getSavedObjectsManagement();
-  const importAndExportableTypes = allTypes.filter(type =>
-    savedObjectsManagement.isImportAndExportable(type)
-  );
+  const { importAndExportableTypes } = server.savedObjects;
 
   return {
     importAndExportableTypes,