Add deprecated select modifier

Author: ra1028

Sources/Atoms/Deprecated.swift

@@ -0,0 +1,8 @@
+public extension Atom {
+    @available(*, deprecated, renamed: "changes(of:)")
+    func select<Selected: Equatable>(
+        _ keyPath: KeyPath<Loader.Value, Selected>
+    ) -> ModifiedAtom<Self, ChangesOfModifier<Loader.Value, Selected>> {
+        changes(of: keyPath)
+    }
+}