Add Rococo test network (#1363)

* Add Rococo test network

* Correct license header

* Add bootNodes address

* Fix compile errors

* Change bootNodes

* Change rococo bootNodes

* Add new bootNodes

* Fix bootNodes typo

* Remove public telemetry

* Add rococo-local chain spec

* Remove staking

* Remove staking from chain spec

* use rococo-staging chain spec and preserve bootnodes

* Same but with --raw

* update chain name and remove telemetry

* Empty commit to re-trigger CI

* Fix revision (temp. until I merge master)

* Revert to branch = master to avoid conflicts

* Revert to branch = master to avoid conflicts

* Disable test (temp)

* Revert to branch = master to avoid conflicts

* Revert to branch = master to avoid conflicts

* Change bootNodes IPs for second rococo network

* Revert "Disable test (temp)"

This reverts commit a159f12e3131d1a25dabb1a4d2834642f2bcdc26.

* Revert purchase

* Update chain spec

* FUUU

* Update service/src/lib.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Update runtime/rococo/src/lib.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Fix compilation

Co-authored-by: Evaldo <contato@evaldofelipe.com>
Co-authored-by: David Dorgan <david@parity.io>
Co-authored-by: Cecile Tonglet <cecile.tonglet@cecton.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>