Add last used voting amount for Relay (#31)

* feat: add last used voting amount to Relay

* feat: point readme to latest RelaySugar release

* Point readme to latest RelaySugar release

contracts/RelaySugar.vy

@@ -19,6 +19,7 @@ struct Relay:
   decimals: uint8
   amount: uint128
   voting_amount: uint256
+  used_voting_amount: uint256
   voted_at: uint256
   votes: DynArray[LpVotes, MAX_PAIRS]
   token: address
@@ -195,6 +196,7 @@ def _byAddress(_relay: address, _account: address) -> Relay:
     decimals: self.ve.decimals(),
     amount: amount,
     voting_amount: self.ve.balanceOfNFT(managed_id),
+    used_voting_amount: vote_weight,
     voted_at: last_voted,
     votes: votes,
     token: relay.token(),

readme.md

@@ -169,7 +169,7 @@ The available methods are:
 
 ### Relay Data
 
-`RelaySugar.vy` is deployed at `0xeBf8F5818D429785A584693599b695AFc3BeE3c6`
+`RelaySugar.vy` is deployed at `0xeEc6dD356508d3f30503bd15317b6D7671410e8e`
 
 It allows fetching Relay autocompounder/autoconverter data.
 The returned data/struct of type `Relay` values represent:
@@ -178,6 +178,7 @@ The returned data/struct of type `Relay` values represent:
   * `decimals` - Relay veNFT token decimals
   * `amount` - Relay veNFT locked amount
   * `voting_amount` - Relay veNFT voting power
+  * `used_voting_amount` - Relay veNFT voting power used for last vote
   * `voted_at` - Relay veNFT last vote timestamp
   * `votes` - Relay veNFT list of pools with vote weights casted in the form of
     `LpVotes`