Associated type Hasher for QueryPreimage, StorePreimage and Bounded (#1720)

I hope it's enough to fix #1701 
the only solution I found to make it happen is to put an associated type
to the `Bounded` enum as well.
@liamaharon @kianenigma @bkchr 

Polkadot address: 12poSUQPtcF1HUPQGY3zZu2P8emuW9YnsPduA4XG3oCEfJVp

---------

Signed-off-by: muraca <mmuraca247@gmail.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

substrate/frame/referenda/src/benchmarking.rs

@@ -25,7 +25,7 @@ use frame_benchmarking::v1::{
 };
 use frame_support::{
 	assert_ok,
-	traits::{Bounded, Currency, EnsureOrigin, EnsureOriginWithArg, UnfilteredDispatchable},
+	traits::{Currency, EnsureOrigin, EnsureOriginWithArg, UnfilteredDispatchable},
 };
 use frame_system::RawOrigin;
 use sp_runtime::traits::Bounded as ArithBounded;
@@ -42,7 +42,7 @@ fn funded_account<T: Config<I>, I: 'static>(name: &'static str, index: u32) -> T
 	caller
 }
 
-fn dummy_call<T: Config<I>, I: 'static>() -> Bounded<<T as Config<I>>::RuntimeCall> {
+fn dummy_call<T: Config<I>, I: 'static>() -> BoundedCallOf<T, I> {
 	let inner = frame_system::Call::remark { remark: vec![] };
 	let call = <T as Config<I>>::RuntimeCall::from(inner);
 	T::Preimages::bound(call).unwrap()