build(bazel): replace yarn_install(name = "npm") with @npm local_repository() to speed up build

[gregmagolan]

This should shave 15s from a clean build as there is one less yarn install to run and also removes the npm/tools/package.json file which needed to be maintained

[gregmagolan]

@devversion You can use the same approach in the angular/material repo to remove the tools/npm/package.json file

[googlebot]

So there's good news and bad news.

👍 The good news is that everyone that needs to sign a CLA (the pull request submitter and all commit authors) have done so. Everything is all good there.

😕 The bad news is that it appears that one or more commits were authored or co-authored by someone other than the pull request submitter. We need to confirm that all authors are ok with their commits being contributed to this project. Please have them confirm that here in the pull request.

Note to project maintainer: This is a terminal state, meaning the cla/google commit status will not change from this state. It's up to you to confirm consent of all the commit author(s), set the cla label to yes (if enabled on your project), and then merge this pull request when appropriate.

[IgorMinar]

I've rebased and forcepushed to this branch (I also sneaked in an fsevents update)

[googlebot]

A Googler has manually verified that the CLAs look good.

(Googler, please make sure the reason for overriding the CLA status is clearly documented in these comments.)

[angular-automatic-lock-bot]

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