This avoids the need to run bazel run :install instead of yarn install.
We merge the devDependencies of ts-api-guardian into the root package.json file.
PR Close#22894
Also use it to test the public API for core and common
Once we have an ng_package for every package, we can remove
the npm dependency on ts-api-guardian and the gulp-based
public api check.
PR Close#22544
Greg Magolan
Igor Minar
Alan Agius
Alex Eagle