Allow changing the behavior for imported blocks (#5236)

* Added option to disable default block announce

* Added on_block_imported on NetworkService

* Revert "Added on_block_imported on NetworkService"

This reverts commit ba360cad96e0cb041d7047af30df2a35eb112449.

* Do not announce block if set to not announce block

* Revert fix

* Moving default announce block to NetworkConfig

* WIP

Forked at: ad90ab7ec9
Parent branch: origin/master

* WIP

Forked at: ad90ab7ec9
Parent branch: origin/master

* Removing boolean in favor of explicit call

* Fixing tests

* WIP

Forked at: ad90ab7ec9
Parent branch: origin/master

* WIP

Forked at: ad90ab7ec9
Parent branch: origin/master

* increase spec_version

* increase spec_version

* Fixed test

* Fixing test

* Renamed should_announce_imported_blocks to announce_imported_blocks

* Updated assert_cmd

substrate/bin/node/cli/Cargo.toml

@@ -113,7 +113,7 @@ sc-consensus-epochs = { version = "0.8.0-alpha.5", path = "../../../client/conse
 sc-service-test = { version = "2.0.0-dev", path = "../../../client/service/test" }
 futures = "0.3.4"
 tempfile = "3.1.0"
-assert_cmd = "0.12"
+assert_cmd = "1.0"
 nix = "0.17"
 serde_json = "1.0"