watcher.js auto updates sub library modules for hot-reloading greatness

[NotChristianGarcia]

Overview:

Added watcher.js, when ran with npm run watcher the script will auto update sub library modules for hot-reloading greatness.
Builds sub libraries with npx tsc --build ./tsconfig.json when appropriate.
Copies changed css and scss files when appropriate (tsx and s/css have different logic).

Summary of Changes:

• Added watcher.js along with npm run watcher
• Also added incremental to all sub library tsconfig.json files. This allows tsx to build only changed files, not forcing a full reload.

Testing Steps:

1. Run both npm run start and npm run watcher concurrently.
2. Make changes to a file in tapisui-common.
3. Watch as the script logs which file is changed and as vite reloading reloads any changes.
4. You can do the same for css/scss. Change tapis-ui/lib/tapisui-common/src/ui/Tabs/Tabs.module.scss and you'll get a hot-reload.

UI Photos:

Notes:

As of now a developer would need to run npm run start and npm run watcher as two separate processes.
Sometimes changes to s/css force a large-ish reload. I think that's when the changes proliferate to many places. Still pretty quick.

This all might be doable with vite in some other way. I couldn't find too much in that regard online.

Added chokidar library which provides watcher utilities.