compact param in calls (#1499)

* impl #[codec(compact)] for param

* update modules

* test all and build runtime

* Update srml/support/src/dispatch.rs

Co-Authored-By: thiolliere <gui.thiolliere@gmail.com>

* Update srml/support/src/dispatch.rs

Co-Authored-By: thiolliere <gui.thiolliere@gmail.com>

* delete wip comment

* update param to use #[compact] instead of Cmpact<>

* fmt

* impl metadata

* test metadata

* add compact attr test

* script buid

* update test

substrate/srml/example/src/lib.rs

@@ -50,7 +50,6 @@ extern crate srml_system as system;
 // might find it useful).
 extern crate srml_balances as balances;
 
-use codec::HasCompact;
 use support::{StorageValue, dispatch::Result};
 use system::ensure_signed;
 
@@ -178,9 +177,9 @@ decl_module! {
 		// without worrying about gameability or attack scenarios.
 		// If you not specify `Result` explicitly as return value, it will be added automatically
 		// for you and `Ok(())` will be returned.
-		fn set_dummy(new_value: <T::Balance as HasCompact>::Type) {
+		fn set_dummy(#[compact] new_value: T::Balance) {
 			// Put the new value into storage.
-			<Dummy<T>>::put(new_value.into());
+			<Dummy<T>>::put(new_value);
 		}
 
 		// The signature could also look like: `fn on_finalise()`