Remove Old Service, 2nd try (#1732)

* Restore "Remove service, migrate all to service-new (#1630)"

i.e.
Revert "Revert "Remove service, migrate all to service-new (#1630)" (#1731)"

This reverts commit b4457f555b.

This allows us to get the changeset from #1630 into a new branch
which can be merged sometime in the future after appropriate burnin
tests have completed.

* remove ',)' from codebase outside of macros

* restore bdfl-preferred formatting

* attempt to improve destructuring formatting

* rename polkadot-service-new -> polkadot-service

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* remove unused import

* Update runtime/rococo-v1/README.md

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

polkadot/cli/src/cli.rs

@@ -79,6 +79,10 @@ pub struct RunCmd {
 	#[structopt(long = "force-westend")]
 	pub force_westend: bool,
 
+	/// Force using Rococo native runtime.
+	#[structopt(long = "force-rococo")]
+	pub force_rococo: bool,
+
 	/// Enable the authority discovery module on validator or sentry nodes.
 	///
 	/// When enabled: