Compute vault share valuation

The method described below is identical to that used for an ERC4626 vault.

To calculate the value of a single share, first determine the price per share of the vault in terms of assets. To achieve this, call the function convertToAssets(uint256 sharers) returns (uint256 assets); with the argument set to 10 ** vault.decimals().

The price per share is given with a scaling factor of 10 ** underlyingAsset.decimals. To obtain a standard value, you have to divide the price by this scaling factor.

To calculate the value of a share in dollars, multiply the price per share by the price of the underlying asset in dollars: pricePerShare / 10 ** underlyingAsset.decimals * underlyingAssetPriceInDollar = shareValueInDollar.