Add parachains for rococo (#144)

* Add parachains for rococo

* Fix chain specs

* Update to revert log rotation

* Support selecting the chain in `export-genesis-state`

* Add subcommand for exporting the genesis wasm of a Parachain

* Update stuff

* Fix `export-genesis-wasm`

* Update the polkadot ref

* Add bootNodes address

* Add bootNodes address - track

* Add bootNodes address - trick

* Fix incorrect peer id (trick)

* Fixes https://github.com/paritytech/cumulus/issues/157

* Update chainspecs

* Update specs again

* Set correct sudo account

* Update properties

* Update readme

* Update `Cargo.lock`

* Switch to rococo-branch

Co-authored-by: Evaldo <contato@evaldofelipe.com>
Co-authored-by: Cecile Tonglet <cecile.tonglet@cecton.com>

cumulus/test/parachain/tests/common.rs

@@ -14,7 +14,11 @@
 // You should have received a copy of the GNU General Public License
 // along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::{process::{Child, ExitStatus}, thread, time::Duration};
+use std::{
+	process::{Child, ExitStatus},
+	thread,
+	time::Duration,
+};
 
 /// Wait for the given `child` the given ammount of `secs`.
 ///