Draft: recurring-transfer

Add pallet recurring-transfer for allowing on-chain recurring transfers.

Il y a encore plein de bouts inutiles de la palette template, je les enlèverai progressivement.

@librelois Il y a une erreur qui me bloque :

66 |     #[pallet::storage]
   |               ^^^^^^^ the trait `std::default::Default` is not implemented for `T`

Avec une aide amusante :

help: consider further restricting this bound
   |
33 | #[frame_support::pallet] + std::default::Default
   |                          ^^^^^^^^^^^^^^^^^^^^^^^

pallets/recurring-transfer/src/benchmarking.rs

+// Copyright 2021 Axiom-Team
+//
+// This file is part of Substrate-Libre-Currency.
+//
+// Substrate-Libre-Currency is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// Substrate-Libre-Currency is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with Substrate-Libre-Currency. If not, see <https://www.gnu.org/licenses/>.
+
+//! Benchmarking setup for pallet-template
+
+use super::*;
+
+#[allow(unused)]
+use crate::Pallet as Template;
+use frame_benchmarking::{benchmarks, impl_benchmark_test_suite, whitelisted_caller};
+use frame_system::RawOrigin;
+
+benchmarks! {
+    do_something {
+        let s in 0 .. 100;
+        let caller: T::AccountId = whitelisted_caller();
+    }: _(RawOrigin::Signed(caller), s)
+    verify {
+        assert_eq!(Something::<T>::get(), Some(s));
+    }
+}
+
+impl_benchmark_test_suite!(Template, crate::mock::new_test_ext(), crate::mock::Test,);