make all extrinsics public so they are available from outside (#9078)

Co-authored-by: thiolliere <gui.thiolliere@gmail.com>

substrate/frame/balances/src/lib.rs

@@ -291,7 +291,7 @@ pub mod pallet {
 			T::WeightInfo::set_balance_creating() // Creates a new account.
 				.max(T::WeightInfo::set_balance_killing()) // Kills an existing account.
 		)]
-		pub(super) fn set_balance(
+		pub fn set_balance(
 			origin: OriginFor<T>,
 			who: <T::Lookup as StaticLookup>::Source,
 			#[pallet::compact] new_free: T::Balance,