iris: add positioned text overflow

examples/text/android.rs

@@ -0,0 +1,9 @@
+use iris::prelude::*;
+
+#[path = "lib.rs"]
+mod app;
+
+#[iris::android_init]
+fn create(ui_state: &mut AndroidUiState, rsc: &mut StdRsc<AndroidUiState>) {
+    app::build(rsc, ui_state);
+}