Kusto extension for ADS (#11752)

* Kusto extension

* Add kusto to extensions.ts

* Remove objectExplorerNodeProvider

* Removed some BDC items + CR cleanup

* Cleanup unused strings in package.nls.json

* Remove unused svgs, and some cleanup

* Bringing objectExplorerNode back and hygiene changes

* rename to KustoObjectExplorerNodeProvider

* rename to KustoIconProvider

* Cleanup SQL code

* Fix compilation error

* Clean up in objectExplorerNodeProvider folder

* Some more clean up based on comments

* apiWrapper add

* changed to camelCase

* Remove unused functions/files

* Removed AgentServicesFeature

* dacfx, cms, schemacompare clean up

* Clean up and addressed few comments

* Remove apWrapper from kusto extension

* Addressed few comments

* credentialstore and escapeexception changes

* Added strict check for Kusto extension

* Fix error and addressed comment

* Saving Kusto files shoulf default to .kql

* package.json changes

* Fix objectExplorerNodeProvider

* Amir/kusto fix (#11972)

* Add the compiled extensions.js

* Fix strict compile rules

Co-authored-by: Monica Gupta <mogupt@microsoft.com>
Co-authored-by: Amir Omidi <amomidi@microsoft.com>

extensions/kusto/src/prompts/input.ts

@@ -0,0 +1,59 @@
+'use strict';
+
+// This code is originally from https://github.com/DonJayamanne/bowerVSCode
+// License: https://github.com/DonJayamanne/bowerVSCode/blob/master/LICENSE
+
+import { window, InputBoxOptions } from 'vscode';
+import Prompt from './prompt';
+import EscapeException from './escapeException';
+
+const figures = require('figures');
+
+export default class InputPrompt extends Prompt {
+
+	protected _options: InputBoxOptions;
+
+	constructor(question: any, ignoreFocusOut?: boolean) {
+		super(question, ignoreFocusOut);
+
+		this._options = this.defaultInputBoxOptions;
+		this._options.prompt = this._question.message;
+	}
+
+	// Helper for callers to know the right type to get from the type factory
+	public static get promptType(): string { return 'input'; }
+
+	public render(): any {
+		// Prefer default over the placeHolder, if specified
+		let placeHolder = this._question.default ? this._question.default : this._question.placeHolder;
+
+		if (this._question.default instanceof Error) {
+			placeHolder = this._question.default.message;
+			this._question.default = undefined;
+		}
+
+		this._options.placeHolder = placeHolder;
+
+		return window.showInputBox(this._options)
+			.then(result => {
+				if (result === undefined) {
+					throw new EscapeException();
+				}
+
+				if (result === '') {
+					// Use the default value, if defined
+					result = this._question.default || '';
+				}
+
+				const validationError = this._question.validate ? this._question.validate(result || '') : undefined;
+
+				if (validationError) {
+					this._question.default = new Error(`${figures.warning} ${validationError}`);
+
+					return this.render();
+				}
+
+				return result;
+			});
+	}
+}