This commit updates `@angular/*` and `@angular/cli` (and related
packages) to version 11.0.0-rc.2. Apart from the automatic migrations,
this commit also tries to align `aio/` with new apps generated by the
latest CLI. (See [here][1] for a diff between a v10.1.3 and a
v11.0.0-rc.2 CLI app.)
[1]: https://github.com/cexbrayat/angular-cli-diff/compare/10.1.3...11.0.0-rc.2
PR Close#39600
This commit removes the `only-arrow-functions: false` tslint rule to
more closely align `tslint.json` with the one generated by the latest
Angular CLI for new apps.
PR Close#39018
This commit also changes the config files and their layout to
(reasonably closely) match what the cli would generate for a new app.
Related Jira issue: [TOOL-815](https://angular-team.atlassian.net/browse/TOOL-815)
PR Close#29926
dario-piotrowicz