es layout: Add to resources and testing

src/resources.rs

@@ -5,6 +5,7 @@
 
 const KEYBOARDS: &[(*const str, *const str)] = &[
     ("us", include_str!("../data/keyboards/us.yaml")),
+    ("es", include_str!("../data/keyboards/es.yaml")),
     ("nb", include_str!("../data/keyboards/nb.yaml")),
     ("number", include_str!("../data/keyboards/number.yaml")),
 ];

tests/meson.build

@@ -47,7 +47,7 @@ endforeach
 # The layout test is in the examples directory
 # due to the way Cargo builds executables
 # and the need to call it manually
-foreach layout : ['us', 'nb', 'number']
+foreach layout : ['us', 'es', 'nb', 'number']
     test(
         'test_layout_' + layout,
         cargo_script,