Feat: aws-nodejs-typescript template improvements

[khaledosman]

What did you implement

Better defaults and performance improvements for the aws-nodejs-typescript template.
Including:

1. smaller bundle size in order to reduce the coldstart penalty as well as deployment times
2. Improve overall developer experience with a faster typescript config
3. Faster and smaller webpack build
4. Enable Gzip compression for API responses by default for a faster API
5. set AWS_NODEJS_CONNECTION_REUSE_ENABLED to 1 by default as a performance improvement to reuse http connections
6. Add a vscode launch.json file for offline debugging through vscode with serverless-offline plugin

I left out the eslint setup as I didn't want to enforce a specific opinion and also to keep consistent with the other aws-nodejs template

Here are the build comparisons for the typical created app via the template, before this change and after.. The gains are even much more significant in a real world projects with more dependencies and files.

Before:

After:

aws-nodejs-typescript template
Closes #6874

How can we verify it

use sls create -t aws-nodejs-typescript
or manually go to the template, run npm install, then run sls webpack

Is this ready for review?: YES
Is it a breaking change?: NO

[pmuens]

Thanks for working on this @khaledosman 👍

I just tested it and it works as expected. LGTM

[sapher]

Just tried it on a fairly big project, it run very AMAZINGLY well

37 000% file size difference for the first file.

3410 % build speed increase

All of this come from a very little change. Amazing