QoL view functions for frontend (#104)

* chore: adding QoL view functions

* fix: summing voting power

* chore: amending variable names to indicate func param

src/ButteredBread.sol

@@ -123,6 +123,14 @@ contract ButteredBread is IButteredBread, ERC20VotesUpgradeable, OwnableUpgradea
         revert NonDelegatable();
     }
 
+    /// @notice Get the balance of a specific LP for a given account
+    /// @param _holder The address of the account to get the balance for
+    /// @param _lp The address of the LP to get the balance for
+    /// @return LPData memory The balance of the LP for the given account
+    function balanceOfLP(address _holder, address _lp) external view returns (LPData memory) {
+        return _accountToLPData[_holder][_lp];
+    }
+
     /// @notice Deposit LP tokens and mint ButteredBread with corresponding LP scaling factor
     function _deposit(address _account, address _lp, uint256 _amount) internal {
         IERC20(_lp).transferFrom(_account, address(this), _amount);

src/YieldDistributor.sol

@@ -116,6 +116,15 @@ contract YieldDistributor is IYieldDistributor, OwnableUpgradeable {
             );
     }
 
+    /// @notice Get the current accumulated voting power for a user
+    /// @dev This is the voting power that has been accumulated since the last yield distribution
+    /// @param _account Address of the user to get the current accumulated voting power for
+    /// @return uint256 The current accumulated voting power for the user
+    function getCurrentAccumulatedVotingPower(address _account) public view returns (uint256) {
+        return this.getVotingPowerForPeriod(BUTTERED_BREAD, lastClaimedBlockNumber, block.number, _account)
+            + this.getVotingPowerForPeriod(BREAD, lastClaimedBlockNumber, block.number, _account);
+    }
+
     /**
      * @notice Return the voting power for a specified user during a specified period of time
      * @param _start Start time of the period to return the voting power for