Create binary for cumulus testing node #1128 (#1158)

* Create binary for cumulus testing node

* Fix call to wrong method

* Fix iterator bug

* Add real networking to polkadot node

* Allow using of file chain specs

* Implement export of wasm blob and genesis state

* Add parachain id to test service export

* Remove debug logs

* Fix main.rs

* Do not use cli from polkadot-collator

* Add tracing dependency

* Improve cli structure

* Use struct instead of enum for export commands

* Add missing license header

* Fix benchmark

* add build-spec subcommand (#19)

* add build-spec subcommand

* reorder args

* Fix formatting

* Add zombienet test (#26)

* add migrated tests

* rename test files

* uncomment args and remove extra collator node

* Fix indentation (#27)

* add migrated tests

* rename test files

* uncomment args and remove extra collator node

* fix identation

* Review comments

* Remove unwanted version changes

Co-authored-by: Sebastian Kunert <skunert@Sebastians-MacBook-Pro.fritz.box>
Co-authored-by: Javier Viola <pepoviola@gmail.com>