Add instrumentation support to the typescript code

[fearthecowboy]

This adds the instrumentation support to enable performance testing and monitoring.

It:

• cleaned up some calls to logging so that we're not over-importing in typescript
• patches the logging so that log messages are sent to the collector.
• adds calls to monkey-patch vscode, the client and the providers so that we get monitoring events for as much as possible.
• if the PERFECTO_LAUNCH_SETTINGS environment variable is not set, everything here is a no-op
• the actual instrumentation code is loaded by the perfecto tool

[sean-mcmanus]

Shouldn't the instrument be added for vscode.languages.registerCodeActionsProvider in extension.ts?

[sean-mcmanus]

FYI, a copilotCompletionProvider got added recently, but I don't know how you would handle that with instrument.

Maybe here?

            this.contextProviderDisposable = contextAPI.registerContextProvider({
                id: CopilotCompletionContextProvider.providerId,
                selector: CopilotCompletionContextProvider.defaultCppDocumentSelector,
                resolver: this
            });