Remove `node_modules` folder created for initializing an NPM project

[mintydev789]

When you use deno init --npm, and the project setup requires some NPM package, it creates a node_modules directory with the one create-<framework> dependency in it. It would be nice if deno init stored the dependencies it requires for project initialization somewhere else temporarily. Example: deno init --npm solid creates node_modules/create-solid, which is useless after installation.

[mintydev789]

@dsherret

[edilson258]

i will work on this