Add no-bundling dev mode

[3cp]

Supports a fast dev mode.

• no bundling. Vite can serve ESM modules, we can serve AMD modules.
• expose all modules individual files in Gorb's Vinyl format.
• design a gulp dev-server along to support serving static files directly from the memory of dumber bundler without gulp.dest writing to disk.
• might need dumber-module-loader to add some feature.