Allow changing resize increments after window creation

src/platform_impl/windows/window.rs

@@ -235,6 +235,14 @@ impl Window {
         self.set_inner_size(size.into());
     }
 
+    #[inline]
+    pub fn resize_increments(&self) -> Option<PhysicalSize<u32>> {
+        None
+    }
+
+    #[inline]
+    pub fn set_resize_increments(&self, _increments: Option<Size>) {}
+
     #[inline]
     pub fn set_resizable(&self, resizable: bool) {
         let window = self.window.clone();