Introduce staking supply, contract and wallet (#1324)

* Introduce staking supply, contract and wallet

* Migration staking supply (#1327)

* Staking supply to params migration

* Include into migration entrypoint

* StateParams merge

* Add changelog

* Make everyone happy

validator-api/src/contract_cache/mod.rs

@@ -108,7 +108,7 @@ impl<C> ValidatorCacheRefresher<C> {
             .map(|mixnode_bond| {
                 let stake_saturation = mixnode_bond
                     .stake_saturation(
-                        interval_reward_params.circulating_supply(),
+                        interval_reward_params.staking_supply(),
                         interval_reward_params.rewarded_set_size() as u32,
                     )
                     .to_num();

validator-api/src/node_status_api/routes.rs

@@ -188,7 +188,7 @@ pub(crate) async fn get_mixnode_stake_saturation(
         let interval_reward_params = interval_reward_params.into_inner();
 
         let saturation = bond.mixnode_bond.stake_saturation(
-            interval_reward_params.circulating_supply(),
+            interval_reward_params.staking_supply(),
             interval_reward_params.rewarded_set_size() as u32,
         );
 

validator-api/src/nymd_client.rs

@@ -193,7 +193,7 @@ impl<C> Client<C> {
                 * interval_reward_percent as u128,
             state.mixnode_rewarded_set_size as u128,
             state.mixnode_active_set_size as u128,
-            this.get_circulating_supply().await?,
+            state.staking_supply.u128(),
             this.get_sybil_resistance_percent().await?,
             this.get_active_set_work_factor().await?,
         );