Add setModeConfiguration for monaco.languages.typescript.[typescript|javascript]Defaults

[joecarl]

This commit implements the functionality requested in #3155.
The work is done based on the implementation for the the css, html and json namespaces.

In this case the ModeConfiguration interface implementation has the following options:

export interface ModeConfiguration {
	/**
	 * Defines whether the built-in completionItemProvider is enabled.
	 */
	readonly completionItems?: boolean;

	/**
	 * Defines whether the built-in hoverProvider is enabled.
	 */
	readonly hovers?: boolean;

	/**
	 * Defines whether the built-in documentSymbolProvider is enabled.
	 */
	readonly documentSymbols?: boolean;

	/**
	 * Defines whether the built-in definitions provider is enabled.
	 */
	readonly definitions?: boolean;

	/**
	 * Defines whether the built-in references provider is enabled.
	 */
	readonly references?: boolean;

	/**
	 * Defines whether the built-in references provider is enabled.
	 */
	readonly documentHighlights?: boolean;

	/**
	 * Defines whether the built-in rename provider is enabled.
	 */
	readonly rename?: boolean;

	/**
	 * Defines whether the built-in diagnostic provider is enabled.
	 */
	readonly diagnostics?: boolean;

	/**
	 * Defines whether the built-in document formatting range edit provider is enabled.
	 */
	readonly documentRangeFormattingEdits?: boolean;

	/**
	 * Defines whether the built-in signature help provider is enabled.
	 */
	readonly signatureHelp?: boolean;

	/**
	 * Defines whether the built-in onType formatting edit provider is enabled.
	 */
	readonly onTypeFormattingEdits?: boolean;

	/**
	 * Defines whether the built-in code actions provider is enabled.
	 */
	readonly codeActions?: boolean;

	/**
	 * Defines whether the built-in inlay hints provider is enabled.
	 */
	readonly inlayHints?: boolean;
}

There are some notes though:

The setupMode implementations for css, html and json return an IDisposable containing all disposable elements created during the function execution. But the setupMode implementation for typescript returns (...uris: Uri[]) => Promise<TypeScriptWorker> containing the worker function. So I implemented the code to collect all disposable elements, but it's useless so far, waiting to be reviewed in future commit.

[joecarl]

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