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/client/executor/common/src/wasm_runtime.rs

@@ -17,7 +17,6 @@
 //! Definitions for a wasm runtime.
 
 use crate::error::Error;
-use sp_core::traits::Externalities;
 use sp_wasm_interface::Function;
 
 /// A trait that defines an abstract wasm runtime.
@@ -34,6 +33,5 @@ pub trait WasmRuntime {
 	fn host_functions(&self) -> &[&'static dyn Function];
 
 	/// Call a method in the Substrate runtime by name. Returns the encoded result on success.
-	fn call(&mut self, ext: &mut dyn Externalities, method: &str, data: &[u8])
-		-> Result<Vec<u8>, Error>;
+	fn call(&mut self, method: &str, data: &[u8]) -> Result<Vec<u8>, Error>;
 }