contracts: Allow contracts to dispatch calls into the runtime (#9276)

* contracts: Allow contracts to dispatch calls into the runtime

* Fix RPC tests

* Fix typo

* Replace () by AllowAllFilter and DenyAllFilter

* Add rust doc

* Fixup for `()` removal

* Fix lowest gas calculation

* Rename AllowAllFilter and DenyAllFilter

* Updated changelog

substrate/frame/authority-discovery/src/lib.rs

@@ -50,7 +50,7 @@ pub mod pallet {
 		Vec<AuthorityId>,
 		ValueQuery,
 	>;
-	
+
 	#[pallet::storage]
 	#[pallet::getter(fn next_keys)]
 	/// Keys of the next authority set.
@@ -212,7 +212,7 @@ mod tests {
 	}
 
 	impl frame_system::Config for Test {
-		type BaseCallFilter = ();
+		type BaseCallFilter = frame_support::traits::AllowAll;
 		type BlockWeights = ();
 		type BlockLength = ();
 		type DbWeight = ();