Recover deleted README and define owners by filename

https://crrev.com/c/5458178 deleted the OWNERS file
and the readme in node_modules by accident.

Bug: none
Change-Id: If1af2296995574333012fe3ad3a1486d3186bdcf
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5463581
Commit-Queue: Alex Rudenko <[email protected]>
Reviewed-by: Benedikt Meurer <[email protected]>

Author: OrKoN

OWNERS

@@ -11,6 +11,7 @@ per-file WATCHLISTS=file://config/owner/INFRA_OWNERS
 per-file htaccess=file://config/owner/INFRA_OWNERS
 per-file package-lock.json=file://config/owner/INFRA_OWNERS
 per-file package.json=file://config/owner/INFRA_OWNERS
+per-file node_modules=file://config/owner/INFRA_OWNERS
 per-file tsconfig.json=file://config/owner/INFRA_OWNERS
 
 # git submodules