Add a new vis_augmenter plugin

src/plugins/vis_augmenter/README.md

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+Contains interfaces and type definitions used for allowing external plugins to augment Visualizations. Registers the relevant saved object types and expression functions.

src/plugins/vis_augmenter/opensearch_dashboards.json

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+{
+  "id": "visAugmenter",
+  "version": "opensearchDashboards",
+  "server": true,
+  "ui": true,
+  "requiredPlugins": ["data", "savedObjects", "opensearchDashboardsUtils"]
+}

src/plugins/vis_augmenter/public/index.ts

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+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { PluginInitializerContext } from 'src/core/public';
+import { VisAugmenterPlugin, VisAugmenterSetup, VisAugmenterStart } from './plugin';
+
+export function plugin(initializerContext: PluginInitializerContext) {
+  return new VisAugmenterPlugin(initializerContext);
+}
+export { VisAugmenterSetup, VisAugmenterStart };

src/plugins/vis_augmenter/public/plugin.ts

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+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { PluginInitializerContext, CoreSetup, CoreStart, Plugin } from '../../../core/public';
+import { DataPublicPluginSetup, DataPublicPluginStart } from '../../data/public';
+
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface VisAugmenterSetup {}
+
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface VisAugmenterStart {}
+
+export interface VisAugmenterSetupDeps {
+  data: DataPublicPluginSetup;
+}
+
+export interface VisAugmenterStartDeps {
+  data: DataPublicPluginStart;
+}
+
+export class VisAugmenterPlugin
+  implements
+    Plugin<VisAugmenterSetup, VisAugmenterStart, VisAugmenterSetupDeps, VisAugmenterStartDeps> {
+  constructor(initializerContext: PluginInitializerContext) {}
+
+  public setup(
+    core: CoreSetup<VisAugmenterStartDeps, VisAugmenterStart>,
+    { data }: VisAugmenterSetupDeps
+  ): VisAugmenterSetup {
+    return {};
+  }
+
+  public start(core: CoreStart, { data }: VisAugmenterStartDeps): VisAugmenterStart {
+    return {};
+  }
+
+  public stop() {}
+}

src/plugins/vis_augmenter/server/index.ts

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+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { PluginInitializerContext } from '../../../core/server';
+import { VisAugmenterPlugin } from './plugin';
+
+export function plugin(initializerContext: PluginInitializerContext) {
+  return new VisAugmenterPlugin(initializerContext);
+}
+export { VisAugmenterPluginSetup, VisAugmenterPluginStart } from './plugin';

src/plugins/vis_augmenter/server/plugin.ts

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+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {
+  PluginInitializerContext,
+  CoreSetup,
+  CoreStart,
+  Plugin,
+  Logger,
+} from '../../../core/server';
+
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface VisAugmenterPluginSetup {}
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface VisAugmenterPluginStart {}
+
+export class VisAugmenterPlugin
+  implements Plugin<VisAugmenterPluginSetup, VisAugmenterPluginStart> {
+  private readonly logger: Logger;
+
+  constructor(initializerContext: PluginInitializerContext) {
+    this.logger = initializerContext.logger.get();
+  }
+
+  public setup(core: CoreSetup) {
+    this.logger.debug('VisAugmenter: Setup');
+    return {};
+  }
+
+  public start(core: CoreStart) {
+    this.logger.debug('VisAugmenter: Started');
+    return {};
+  }
+
+  public stop() {}
+}