Test new workspace event API

[jrieken]

Refs: #43768

• any @deepak1556
• any @dbaeumer

Complexity: 3

There are new event that fire before and after a file or folder is being created, renamed, and deleted. These events are vscode.workspace.onWillRename, ...onDidRename, ..onWillCreate, ...onDidCreate, ...onWillDelete, and ...onDidDelete. Test

• these events are fired when performing file operations via the explorer or the vscode.workspace.applyEdit API
• these events are not fire when performing them "on disk", e.g using the cmd line, another application, or the vscode.workspace.fs API.
• the will-events allow to register a promise that is awaited before performing the operation
• this works when deleting, moving many files/folders
• the jsdoc is easy to understand

[jrieken]

fyi - use the vscode-dts-utility to use the latest version of vscode.d.ts and/or vscode.proposed.d.ts

[jrieken]

fyi - this should be finalised API but the PR didn't make it in time. So, the API is still in proposed but won't change anymore. (In master it's moved to stable)

[dbaeumer]

Worked nicely for me. I tested under Windows.

[deepak1556]

Works pretty good on macOS 👍 , identified a couple of edge cases.