WeightInfo for Vesting Pallet (#7103)

* WeightInfo for Vesting Pallet

* clean up weight docs

* Update lib.rs

* try to pipe max locks

* Update for new type

* add warning when locks > MaxLocks

* Update lib.rs

* fix compile

* remove aliasing, fix trait def

* Update

substrate/frame/example/src/lib.rs

@@ -774,6 +774,7 @@ mod tests {
 		pub const ExistentialDeposit: u64 = 1;
 	}
 	impl pallet_balances::Trait for Test {
+		type MaxLocks = ();
 		type Balance = u64;
 		type DustRemoval = ();
 		type Event = ();