feat: add wrapped_owned method to CurrencyAmount (#105)

Introduced `wrapped_owned` to wrap non-native currency amounts into `CurrencyAmount<Token>`. Also updated `Cargo.toml` to version `4.0.0-rc3` to reflect the new changes.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uniswap-sdk-core"
-version = "4.0.0-rc2"
+version = "4.0.0-rc3"
 edition = "2021"
 authors = ["malik <aremumalik05@gmail.com>", "Shuhui Luo <twitter.com/aureliano_law>"]
 description = "The Uniswap SDK Core in Rust provides essential functionality for interacting with the Uniswap decentralized exchange"

src/entities/fractions/currency_amount.rs

@@ -150,6 +150,16 @@ impl<T: BaseCurrency> CurrencyAmount<T> {
             self.denominator(),
         )
     }
+
+    /// Wrap the currency amount if the currency is not native
+    #[inline]
+    pub fn wrapped_owned(&self) -> Result<CurrencyAmount<Token>, Error> {
+        CurrencyAmount::from_fractional_amount(
+            self.currency.wrapped().clone(),
+            self.numerator(),
+            self.denominator(),
+        )
+    }
 }
 
 #[cfg(test)]