Implement runtime version checks in set_code (#4548)

* Implement runtime version checks in `set_code`

Check that the new runtime code given to `set_code` fullfills some
requirements:

- `spec_name` matches
- `spec_version` does not decreases
- `impl_version` does not decreases
- Either `spec_version` and `impl_version` increase

* Make tests almost work

* Some fixes after master merge

* Fix tests

* Add missed file

* Make depedency check happy?

* Remove leftover `sc-executor`

* AHHHHH

* Reset debug stuff

* Remove some 'static

* More 'static

* Some docs

* Update `Cargo.lock`

substrate/test-utils/client/src/lib.rs

@@ -165,7 +165,7 @@ impl<Executor, Backend, G: GenesisInit> TestClientBuilder<Executor, Backend, G>
 		>,
 		sc_client::LongestChain<Backend, Block>,
 	) where
-		Executor: sc_client::CallExecutor<Block>,
+		Executor: sc_client::CallExecutor<Block> + 'static,
 		Backend: sc_client_api::backend::Backend<Block>,
 		Block: BlockT,
 	{
@@ -224,8 +224,8 @@ impl<E, Backend, G: GenesisInit> TestClientBuilder<
 		sc_client::LongestChain<Backend, Block>,
 	) where
 		I: Into<Option<NativeExecutor<E>>>,
-		E: sc_executor::NativeExecutionDispatch,
-		Backend: sc_client_api::backend::Backend<Block>,
+		E: sc_executor::NativeExecutionDispatch + 'static,
+		Backend: sc_client_api::backend::Backend<Block> + 'static,
 		Block: BlockT,
 	{
 		let executor = executor.into().unwrap_or_else(||