Perfetto controls

[JyotiBurnwal1]

Support for enable, start and stop perfetto feature.

[ramkav]

please use ".perfetto-trace" instead of ".prof" for the filename suffix.

[ramkav]

Please use ".perfetto-trace" instead of ".prof" for filename suffix.

[ramkav]

Please use ".perfetto-trace" instead of ".prof" for filename suffix.

[ramkav]

Please ".perfetto-trace" instead of ".bsprof" for trace filename suffix.
Also, later in the code when testing for profiling, what should the default behavior be if the filename and/or dir are missing? What's the default?

[ramkav]

Can the error messages be made more consistent? In some cases we say "perfetto tracing", in others, it's "Perfetto tracing, and in other places it's "Tracing" or "Perfetto tracing". If someone's doing a case-sensitive filter, this can lead to a needlessly painful debugging experience.

Also, perhaps a good sign that this logic needs to be made a bit more DRY? Maybe use a Template Method pattern? Im thinking something like this (so we have only a couple places where the messages are printed, reducing the chance for variability, and making the code a bit tighter?):

private async handleTracingOperation(
operationName: string,
operation: () => Promise
): Promise {
this.showInfo(${operationName} perfetto Tracing!);

    const response = await operation();

    if (response.error) {
        this.showError(`Error ${operationName.toLowerCase()} perfetto tracing: ${response.message}`);
    } else {
        this.showInfo(`Perfetto tracing ${operationName.toLowerCase()}d: ${response.message}`);
    }
}

public async executeCommand(command: string): Promise<void> {
    switch (command) {
        case 'start':
            await this.handleTracingOperation('Starting', () => this.perfettoController.startTracing());
            break;
        case 'stop':
            await this.handleTracingOperation('Stopping', () => this.perfettoController.stopTracing());
            break;
        case 'enable':
            await this.handleTracingOperation('Enabling', () => this.perfettoController.enableTracing());
            break;
        // Add other cases here
        default:
            this.showError(`Unknown command: ${command}`);
            break;
    }
}

}

[ramkav]

What should happen if profiling is enabled but there's no dir? Does the DebugConfigurationProvider.ts value become the default for any missing fields? E.g. if the developer's launch.json has:
profiling: { enable: true}

will the dir and filename be filled by default from DebugConfigurationProvider.ts as:
profiling: {
enable: true, <--- this is from developer's launch.json
dir: '${workspaceFolder}/profiles/', <--- populated from DebugConfigurationProvider.ts?
filename: '${appTitle}-${timestamp}.bsprof' <--- populated from DebugConfigurationProvider.ts?
}