Scaffold iced_tiny_skia and connect it to iced_renderer

tiny_skia/src/settings.rs

@@ -0,0 +1,24 @@
+use crate::Font;
+
+/// The settings of a [`Backend`].
+///
+/// [`Backend`]: crate::Backend
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub struct Settings {
+    /// The default [`Font`] to use.
+    pub default_font: Font,
+
+    /// The default size of text.
+    ///
+    /// By default, it will be set to `16.0`.
+    pub default_text_size: f32,
+}
+
+impl Default for Settings {
+    fn default() -> Settings {
+        Settings {
+            default_font: Font::SansSerif,
+            default_text_size: 16.0,
+        }
+    }
+}