Add initializer without replace

Sources/LevenshteinTransformations/AsyncFunctions.swift

@@ -30,4 +30,20 @@ public struct AsyncFunctions<Element> {
         self.insert = insert
     }
 
+    /// Initialize a functions value.
+    /// - Parameters:
+    ///     - delete: Delete the element at a certain index.
+    ///     - insert: Insert a certain element at a certain index.
+    public init(
+        delete: @escaping (Int) async -> Void,
+        insert: @escaping (Int, Element) async -> Void
+    ) {
+        self.replace = { index, element in
+            await delete(index)
+            await insert(index, element)
+        }
+        self.delete = delete
+        self.insert = insert
+    }
+
 }

Sources/LevenshteinTransformations/Functions.swift

@@ -30,4 +30,20 @@ public struct Functions<Element> {
         self.insert = insert
     }
 
+    /// Initialize a functions value.
+    /// - Parameters:
+    ///     - delete: Delete the element at a certain index.
+    ///     - insert: Insert a certain element at a certain index.
+    public init(
+        delete: @escaping (Int) -> Void,
+        insert: @escaping (Int, Element) -> Void
+    ) {
+        self.replace = { index, element in
+            delete(index)
+            insert(index, element)
+        }
+        self.delete = delete
+        self.insert = insert
+    }
+
 }